British Nationality Act 1981

• Citation: 1981 c. 61
• Sections: 136

Section 1 Acquisition by birth or adoption.

(1) A person born in the United Kingdom after commencement , or in a qualifying territory on or after the appointed day, shall be a British citizen if at the time of the birth his father or mother is—

(a) a British citizen; or

(b) settled in the United Kingdom or that territory .

(1A) A person born in the United Kingdom or a qualifying territory on or after the relevant day shall be a British citizen if at the time of the birth his father or mother is a member of the armed forces.

(2) A new-born infant who, after commencement, is found abandoned in the United Kingdom , or on or after the appointed day is found abandoned in a qualifying territory, shall, unless the contrary is shown, be deemed for the purposes of subsection (1)—

(a) to have been born in the United Kingdom after commencement or in that territory on or after the appointed day ; and

(b) to have been born to a parent who at the time of the birth was a British citizen or settled in the United Kingdom or that territory .

(3) A person born in the United Kingdom after commencement who is not a British citizen by virtue of subsection (1) , (1A) or (2) or section 10A shall be entitled to be registered as a British citizen if, while he is a minor—

(a) his father or mother becomes a British citizen or becomes settled in the United Kingdom; and

(b) an application is made for his registration as a British citizen.

(3A) A person born in the United Kingdom on or after the relevant day who is not a British citizen by virtue of subsection (1), (1A) or (2) or section 10A shall be entitled to be registered as a British citizen if, while he is a minor—

(a) his father or mother becomes a member of the armed forces; and

(b) an application is made for his registration as a British citizen

(4) A person born in the United Kingdom after commencement who is not a British citizen by virtue of subsection (1) , (1A) or (2) or section 10A shall be entitled, on an application for his registration as a British citizen made at any time after he has attained the age of ten years, to be registered as such a citizen if, as regards each of the first ten years of that person’s life, the number of days on which he was absent from the United Kingdom in that year does not exceed 90.

(5) Where—

(a) any court in the United Kingdom or, on or after the appointed day, any court in a qualifying territory makes an order authorising the adoption of a minor who is not a British citizen; or

(b) a minor who is not a British citizen is adopted under a Convention adoption effected under the law of a country or territory outside the United Kingdom ,

that minor shall, if the requirements of subsection (5A) are met, be a British citizen as from the date on which the order is made or the Convention adoption is effected, as the case may be.

(5A) Those requirements are that on the date on which the order is made or the Convention adoption is effected (as the case may be)—

(a) the adopter or, in the case of a joint adoption, one of the adopters is a British citizen; and

(b) in a case within subsection (5)(b), the adopter or, in the case of a joint adoption, both of the adopters are habitually resident in the United Kingdom or in a designated territory .

(6) Where an order or a Convention adoption in consequence of which any person became a British citizen by virtue of subsection (5) ceases to have effect, whether on annulment or otherwise, the cesser shall not affect the status of that person as a British citizen.

(7) If in the special circumstances of any particular case the Secretary of State thinks fit, he may for the purposes of subsection (4) treat the person to whom the application relates as fulfilling the requirement specified in that subsection although, as regards any one or more of the first ten years of that person’s life, the number of days on which he was absent from the United Kingdom in that year or each of the years in question exceeds 90.

(8) In this section and elsewhere in this Act “ settled ” has the meaning given by section 50 ....

(9) The relevant day for the purposes of subsection (1A) or (3A) is the day appointed for the commencement of section 42 of the Borders, Citizenship and Immigration Act 2009 (which inserted those subsections).

Section 2 Acquisition by descent.

(1) A person born outside the United Kingdom and the qualifying territories after commencement shall be a British citizen if at the time of the birth his father or mother—

(a) is a British citizen otherwise than by descent; or

(b) is a British citizen and is serving outside the United Kingdom and the qualifying territories in service to which this paragraph applies, his or her recruitment for that service having taken place in the United Kingdom or a qualifying territory ; or

(c) is a British citizen and is serving outside the United Kingdom and the qualifying territories in service under an EU institution, his or her recruitment for that service having taken place in a country which at the time of the recruitment was a member of the European Union .

(2) Paragraph (b) of subsection (1) applies to—

(a) Crown service under the government of the United Kingdom or of a qualifying territory ; and

(b) service of any description for the time being designated under subsection (3).

(3) For the purposes of this section the Secretary of State may by order made by statutory instrument designate any description of service which he considers to be closely associated with the activities outside the United Kingdom and the qualifying territories of Her Majesty’s government in the United Kingdom or in a qualifying territory .

(4) Any order made under subsection (3) shall be subject to annulment in pursuance of a resolution of either House of Parliament.

Section 3 Acquisition by registration: minors.

(1) If while a person is a minor an application is made for his registration as a British citizen, the Secretary of State may, if he thinks fit, cause him to be registered as such a citizen.

(2) A person born outside the United Kingdom and the qualifying territories shall be entitled, on an application for his registration as a British citizen made while he is a minor , to be registered as such a citizen if the requirements specified in subsection (3) or, in the case of a person born stateless, the requirements specified in paragraphs (a) and (b) of that subsection, are fulfilled in the case of either that person’s father or his mother (“the parent in question”).

(3) The requirements referred to in subsection (2) are—

(a) that the parent in question was a British citizen by descent at the time of the birth; and

(b) that the father or mother of the parent in question—

(i) was a British citizen otherwise than by descent at the time of the birth of the parent in question; or

(ii) became a British citizen otherwise than by descent at commencement, or would have become such a citizen otherwise than by descent at commencement but for his or her death; and

(c) that, as regards some period of three years ending with a date not later than the date of the birth—

(i) the parent in question was in the United Kingdom or a qualifying territory at the beginning of that period; and

(ii) the number of days on which the parent in question was absent from the United Kingdom and the qualifying territories in that period does not exceed 270.

(4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(5) A person born outside the United Kingdom and the qualifying territories shall be entitled, on an application for his registration as a British citizen made while he is a minor, to be registered as such a citizen if the following requirements are satisfied, namely—

(a) that at the time of that person’s birth his father or mother was a British citizen by descent; and

(b) subject to subsection (6), that that person and his father and mother were in the United Kingdom or a qualifying territory at the beginning of the period of three years ending with the date of the application and that, in the case of each of them, the number of days on which the person in question was absent from the United Kingdom and the qualifying territories in that period does not exceed 270; and

(c) subject to subsection (6), that the consent of his father and mother to the registration has been signified in the prescribed manner.

(6) In the case of an application under subsection (5) for the registration of a person as a British citizen—

(a) if his father or mother died, or their marriage or civil partnership was terminated, on or before the date of the application, or his father and mother were legally separated on that date, the references to his father and mother in paragraph (b) of that subsection shall be read either as references to his father or as references to his mother; and

(b) if his father or mother died on or before that date, the reference to his father and mother in paragraph (c) of that subsection shall be read as a reference to either of them; ...

(c) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 4 Acquisition by registration: British overseas territories citizens etc.

(1) This section applies to any person who is a British overseas territories citizen , a British National (Overseas), a British Overseas citizen, a British subject under this Act or a British protected person.

(2) A person to whom this section applies shall be entitled, on an application for his registration as a British citizen, to be registered as such a citizen if the following requirements are satisfied in the case of that person, namely—

(a) subject to subsection (3), that he was in the United Kingdom at the beginning of the period of five years ending with the date of the application and that the number of days on which he was absent from the United Kingdom in that period does not exceed 450; and

(b) that the number of days on which he was absent from the United Kingdom in the period of twelve months so ending does not exceed 90; and

(c) that he was not at any time in the period of twelve months so ending subject under the immigration laws to any restriction on the period for which he might remain in the United Kingdom; and

(d) that he was not at any time in the period of five years so ending in the United Kingdom in breach of the immigration laws.

(3) So much of subsection (2)(a) as requires the person in question to have been in the United Kingdom at the beginning of the period there mentioned shall not apply in relation to a person who was settled in the United Kingdom immediately before commencement.

(4) If in the special circumstances of any particular case the Secretary of State thinks fit, he may for the purposes of subsection (2) do all or any of the following things, namely—

(za) treat the person to whom the application relates as fulfilling the first requirement specified in subsection (2)(a) although the person was not in the United Kingdom at the beginning of the period there mentioned;

(a) treat the person to whom the application relates as fulfilling the second requirement specified in subsection (2)(a) or the requirement specified in subsection (2)(b), or both, although the number of days on which he was absent from the United Kingdom in the period there mentioned exceeds the number there mentioned;

(b) disregard any such restriction as is mentioned in subsection (2)(c), not being a restriction to which that person was subject on the date of the application;

(c) treat that person as fulfilling the requirement specified in subsection (2)(d) although he was in the United Kingdom in breach of the immigration laws in the period there mentioned.

(4A) Subsection (4B) applies where, on an application for registration as a British citizen made by a person to whom this section applies, the applicant has indefinite leave to enter or remain in the United Kingdom.

(4B) The Secretary of State may for the purposes of subsection (2) treat the applicant as fulfilling the requirement specified in subsection (2)(d), without enquiring into whether or not the applicant was in the United Kingdom in breach of the immigration laws in the period there mentioned.

(4C) The reference in subsection (4A) to having indefinite leave to enter or remain is to be construed in accordance with the Immigration Act 1971.

(5) If, on an application for registration as a British citizen made by a person to whom this section applies, the Secretary of State is satisfied that the applicant has at any time served in service to which this subsection applies, he may, if he thinks fit in the special circumstances of the applicant’s case, cause him to be registered as such a citizen.

(6) Subsection (5) applies to—

(a) Crown service under the government of a British overseas territory ; and

(b) paid or unpaid service (not falling within paragraph (a)) as a member of any body established by law in a British overseas territory members of which are appointed by or on behalf of the Crown.

(7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 4A Acquisition by registration: further provision for British overseas territories citizens

(1) If an application is made to register as a British citizen a person who is a British overseas territories citizen, the Secretary of State may if he thinks fit cause the person to be so registered.

(2) Subsection (1) does not apply in the case of a British overseas territories citizen who—

(a) is such a citizen by virtue only of a connection with the Sovereign Base Areas of Akrotiri and Dhekelia; or

(b) has ceased to be a British citizen as a result of a declaration of renunciation.

(3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 4B Acquisition by registration: certain persons without other citizenship

(1) This section applies to a person who has the status of—

(a) British Overseas citizen,

(b) British subject under this Act, . . .

(c) British protected person. , or

(d) British National (Overseas)

(2) A person to whom this section applies shall be entitled to be registered as a British citizen if—

(a) he applies for registration under this section,

(b) the Secretary of State is satisfied that the person does not have, apart from the status mentioned in subsection (1), any citizenship or nationality, and

(c) the Secretary of State is satisfied that the person has not after the relevant day renounced, voluntarily relinquished or lost through action or inaction any citizenship or nationality

(3) For the purposes of subsection (2)(c), the “ relevant day ” means—

(a) in the case of a person to whom this section applies by virtue of subsection (1)(d) only, 19th March 2009, and

(b) in any other case, 4th July 2002.

Section 4C Acquisition by registration: certain persons born before 1983

(1) A person is entitled to be registered as a British citizen if—

(a) he applies for registration under this section, and

(b) he satisfies each of the following conditions.

(2) The first condition is that the applicant was born . . . before 1st January 1983.

(3) The second condition is that the applicant would at some time before 1st January 1983 have become a citizen of the United Kingdom and Colonies—

(a) under section 5 of, or paragraph 3 of Schedule 3 to, the 1948 Act if assumption A had applied,

(b) under section 12(3), (4) or (5) of that Act if assumption B had applied and as a result of its application the applicant would have been a British subject immediately before 1st January 1949, or

(c) under section 12(2) of that Act if one or both of the following had applied—

(i) assumption A had applied;

(ii) assumption B had applied and as a result of its application the applicant would have been a British subject immediately before 1st January 1949.

(3A) Assumption A is that—

(a) section 5 or 12(2) of, or paragraph 3 of Schedule 3 to, the 1948 Act (as the case may be) provided for citizenship by descent from a mother in the same terms as it provided for citizenship by descent from a father, and

(b) references in that provision to a father were references to the applicant's mother.

(3B) Assumption B is that—

(a) a provision of the law at some time before 1st January 1949 which provided for a nationality status to be acquired by descent from a father provided in the same terms for its acquisition by descent from a mother, and

(b) references in that provision to a father were references to the applicant's mother.

(3C) For the purposes of subsection (3B), a nationality status is acquired by a person (“P”) by descent where its acquisition—

(a) depends, amongst other things, on the nationality status of one or both of P's parents, and

(b) does not depend upon an application being made for P's registration as a person who has the status in question.

(3D) In determining for the purposes of subsection (3) whether a person would have been a citizen of the United Kingdom and Colonies, the requirement that a person’s birth was registered at a United Kingdom consulate, as set out in section 5(1)(b) of the British Nationality Act 1948, is to be ignored.

(4) The third condition is that immediately before 1st January 1983 the applicant would have had the right of abode in the United Kingdom by virtue of section 2 of the Immigration Act 1971 (c. 77) had he become a citizen of the United Kingdom and Colonies as described in subsection (3) above.

(5) For the purposes of the interpretation of section 5 of the 1948 Act in its application in the case of assumption A to a case of descent from a mother, the reference in the proviso to subsection (1) of that section to “ a citizen of the United Kingdom and Colonies by descent only ” includes a reference to a female person who became a citizen of the United Kingdom and Colonies by virtue of—

(a) section 12(2), (4) or (6) only of the 1948 Act,

(b) section 13(2) of that Act,

(c) paragraph 3 of Schedule 3 to that Act, or

(d) section 1(1)(a) or (c) of the British Nationality ( No. 2) Act 1964.

Section 4D Acquisition by registration: children of members of the armed forces

(1) A person (“P”) born outside the United Kingdom and the qualifying territories on or after the relevant day is entitled to be registered as a British citizen if—

(a) an application is made for P's registration under this section; and

(b) each of the following conditions is satisfied.

(2) The first condition is that, at the time of P's birth, P's father or mother was—

(a) a member of the armed forces; and

(b) serving outside the United Kingdom and the qualifying territories.

(3) The second condition is that, if P is a minor on the date of the application, the consent of P's father and mother to P's registration as a British citizen has been signified in the prescribed manner.

(4) But if P's father or mother has died on or before the date of the application, the reference in subsection (3) to P's father and mother is to be read as a reference to either of them.

(5) The Secretary of State may, in the special circumstances of a particular case, waive the need for the second condition to be satisfied.

(6) The relevant day for the purposes of this section is the day appointed for the commencement of section 46 of the Borders, Citizenship and Immigration Act 2009 (which inserted this section).

Section 4E The general conditions

For the purposes of sections 4F to 4I, a person (“P”) meets the general conditions if—

(a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b) at the time of P's birth, P's mother—

(i) was not married, or

(ii) was married to a person other than P's natural father;

(c) no person is treated as the father of P under section 28 of the Human Fertilisation and Embryology Act 1990 or under section 35 or 36 of the Human Fertilisation and Embryology Act 2008 ;

(ca) no person is treated as a parent of P under section 42 or 43 of the Human Fertilisation and Embryology Act 2008; and

(d) P has never been a British citizen.

Section 4F Person unable to be registered under other provisions of this Act

(1) A person (“P”) is entitled to be registered as a British citizen on an application made under this section if—

(a) P meets the general conditions; and

(b) P would be entitled to be registered as a British citizen under—

(i) section 1(3),

(ii) section 3(2),

(iii) section 3(5),

(iiia) section 4D,

(iv) paragraph 4 of Schedule 2, or

(v) paragraph 5 of Schedule 2,

had P's mother been married to P's natural father at the time of P's birth.

(2) In the following provisions of this section “ relevant registration provision ” means the provision under which P would be entitled to be registered as a British citizen (as mentioned in subsection (1)(b)).

(3) If the relevant registration provision is section 3(2), a person who is registered as a British citizen under this section is a British citizen by descent.

(4) If the relevant registration provision is section 3(5), the Secretary of State may, in the special circumstances of the particular case, waive the need for any or all of the parental consents to be given.

(5) For that purpose, the “parental consents” are—

(a) the consent of P's natural father, and

(b) the consent of P's mother,

insofar as they would be required by section 3(5)(c) (as read with section 3(6)(b)), had P's mother been married to P's natural father at the time of P's birth.

Section 4G Person unable to become citizen automatically after commencement

(1) A person (“P”) is entitled to be registered as a British citizen on an application made under this section if—

(a) P meets the general conditions; and

(b) at any time in the period after commencement, P would have automatically become a British citizen at birth by the operation of any provision of this Act or the British Nationality (Falkland Islands) Act 1983, had P's mother been married to P's natural father at the time of P's birth.

(2) A person who is registered as a British citizen under this section is a British citizen by descent if the British citizenship which the person would have acquired at birth (as mentioned in subsection (1)(b)) would (by virtue of section 14) have been British citizenship by descent.

(3) If P is under the age of 18, no application may be made unless the consent of P's natural father and mother to the registration has been signified in the prescribed manner.

(4) But if P's natural father or mother has died on or before the date of the application, the reference in subsection (3) to P's natural father and mother is to be read as a reference to either of them.

(5) The Secretary of State may, in the special circumstances of a particular case, waive the need for any or all of the consents required by subsection (3) (as read with subsection (4)) to be given.

(6) The reference in this section to the period after commencement does not include the time of commencement (and, accordingly, this section does not apply to any case in which a person was unable to become a British citizen at commencement).

Section 4H Citizen of UK and colonies unable to become citizen at commencement

(1) A person (“P”) is entitled to be registered as a British citizen on an application made under this section if—

(a) P meets the general conditions;

(b) P was a citizen of the United Kingdom and Colonies immediately before commencement; and

(c) P would have automatically become a British citizen at commencement, by the operation of any provision of this Act, had P's mother been married to P's natural father at the time of P's birth.

(2) A person who is registered as a British citizen under this section is a British citizen by descent if the British citizenship which the person would have acquired at commencement (as mentioned in subsection (1)(c)) would (by virtue of section 14) have been British citizenship by descent.

Section 4I Other person unable to become citizen at commencement

(1) A person (“P”) is entitled to be registered as a British citizen on an application made under this section if—

(a) P meets the general conditions;

(b) P is either—

(i) an eligible former British national, or

(ii) an eligible non-British national; and

(c) had P's mother been married to P's natural father at the time of P's birth, P—

(i) would have been a citizen of the United Kingdom and Colonies immediately before commencement, and

(ii) would have automatically become a British citizen at commencement by the operation of any provision of this Act.

(1A) In determining for the purposes of subsection (1)(c)(i) whether a person would have been a citizen of the United Kingdom and Colonies, the requirement that a person’s birth was registered at a United Kingdom consulate, as set out in section 5(1)(b) of the British Nationality Act 1948, is to be ignored.

(2) P is an “eligible former British national” if P was not a citizen of the United Kingdom and Colonies immediately before commencement and either—

(a) P ceased to be a British subject or a citizen of the United Kingdom and Colonies by virtue of the commencement of any independence legislation, but would not have done so had P's mother been married to P's natural father at the time of P's birth, or

(b) P was a British subject who did not automatically become a citizen of the United Kingdom and Colonies at commencement of the British Nationality Act 1948 by the operation of any provision of it, but would have done so had P's mother been married to P's natural father at the time of P's birth.

(3) P is an “eligible non-British national” if—

(a) P was never a British subject or citizen of the United Kingdom and Colonies; and

(b) had P's mother been married to P's natural father at the time of P's birth, P would have automatically become a British subject or citizen of the United Kingdom and Colonies—

(i) at birth, or

(ii) by virtue of paragraph 3 of Schedule 3 to the British Nationality Act 1948 (child of male British subject to become citizen of the United Kingdom and Colonies if the father becomes such a citizen).

(4) A person who is registered as a British citizen under this section is a British citizen by descent if the British citizenship which the person would have acquired at commencement (as mentioned in subsection (1)(c)(ii)) would (by virtue of section 14) have been British citizenship by descent.

(5) In determining for the purposes of subsection (1)(c)(i) whether P would have been a citizen of the United Kingdom and Colonies immediately before commencement, it must be assumed that P would not have—

(a) renounced or been deprived of any notional British nationality, or

(b) lost any notional British nationality by virtue of P acquiring the nationality of a country or territory outside the United Kingdom.

(6) A “notional British nationality” is—

(a) in a case where P is an eligible former British national, any status as a British subject or a citizen of the United Kingdom and Colonies which P would have held at any time after P's nationality loss (had that loss not occurred and had P's mother had been married to P's natural father at the time of P's birth);

(b) in a case where P is an eligible non-British national—

(i) P's status as a British subject or citizen of the United Kingdom and Colonies mentioned in subsection (3)(b), and

(ii) any other status as a British subject or citizen of the United Kingdom and Colonies which P would have held at any time afterwards (had P's mother been married to P's natural father at the time of P's birth).

(7) In this section—

“British subject” has any meaning which it had for the purposes of the British Nationality and Status of Aliens Act 1914;

“ independence legislation ” means an Act of Parliament or any subordinate legislation (within the meaning of the Interpretation Act 1978) forming part of the law in the United Kingdom (whenever passed or made, and whether or not still in force)—

providing for a country or territory to become independent from the United Kingdom, or

dealing with nationality, or any other ancillary matters, in connection with a country or territory becoming independent from the United Kingdom;

“ P's nationality loss ” means P's—

ceasing to be a British subject or citizen of the United Kingdom and Colonies (as mentioned in subsection (2)(a)), or

not becoming a citizen of the United Kingdom and Colonies (as mentioned in subsection (2)(b)).

Section 4J Sections 4E to 4I: supplementary provision

(1) In sections 4E to 4I and this section, a person's “natural father” is a person who satisfies the requirements as to proof of paternity that are prescribed in regulations under section 50(9B).

(2) The power under section 50(9B) to make different provision for different circumstances includes power to make provision for the purposes of any provision of sections 4E to 4I which is different from other provision made under section 50(9B).

(3) The following provisions apply for the purposes of sections 4E to 4I.

(4) A reference to a person automatically becoming a British citizen, or a citizen of the United Kingdom and Colonies, is a reference to the person becoming such a citizen without the need for—

(a) the person to be registered as such a citizen by the Secretary of State or any other minister of the Crown;

(b) the birth of the person to be registered by a diplomatic or consular representative of the United Kingdom; or

(c) the person to be naturalised as such a citizen.

(5) If the mother of a person could not actually have been married to the person's natural father at the time of the person's birth (for whatever reason), that fact does not prevent an assumption being made that the couple were married at the time of the birth.

Section 4K Acquisition by registration: certain British overseas territories citizens

(1) A person is entitled to be registered as a British citizen on an application made under this section if—

(a) they are entitled to be registered as a British overseas territories citizen under section 17A, 17C, 17D, 17E, 17F or 17H, or

(b) they would be entitled to be registered as a British overseas territories citizen under any of those sections but for the fact that they have already become a British overseas territories citizen under a different provision.

(2) Subsection (1) does not apply in the case of a person—

(a) who is or would be entitled to be registered as a British overseas territories citizen by virtue only of a connection with the Sovereign Base Areas of Akrotiri and Dhekelia, or

(b) who has previously been a British citizen.

(3) The Secretary of State may not register a person as a British citizen on an application under subsection (1)(a) unless the person is also registered as a British overseas territories citizen.

Section 4L Acquisition by registration: special circumstances

(1) If an application is made for a person of full age and capacity (“ P ”) to be registered as a British citizen, the Secretary of State may cause P to be registered as such a citizen if, in the Secretary of State’s opinion, P would have been, or would have been able to become, a British citizen but for—

(a) historical legislative unfairness,

(b) an act or omission of a public authority, or

(c) exceptional circumstances relating to P.

(2) For the purposes of subsection (1)(a), “ historical legislative unfairness ” includes circumstances where P would have become, or would not have ceased to be, a British subject, a citizen of the United Kingdom and Colonies or a British citizen, if an Act of Parliament or subordinate legislation (within the meaning of the Interpretation Act 1978) had, for the purposes of determining a person’s nationality status—

(a) treated males and females equally,

(b) treated children of unmarried couples in the same way as children of married couples, or

(c) treated children of couples where the mother was married to someone other than the natural father in the same way as children of couples where the mother was married to the natural father.

(3) In subsection (1)(b), “ public authority ” means any public authority within the meaning of section 6 of the Human Rights Act 1998, other than a court or tribunal.

(4) In considering whether to grant an application under this section, the Secretary of State may take into account whether the applicant is of good character.

Section 4AA Acquisition by registration: Irish citizens

(1) An Irish citizen is entitled to be registered as a British citizen if—

(a) an application for their registration is made under this section, and

(b) they satisfy the requirements specified in subsection (2).

(2) The requirements are that—

(a) the person was in the United Kingdom at the beginning of the period of five years ending with the date of their application;

(b) the person was absent from the United Kingdom for—

(i) no more than 450 days in the period of five years ending with the date of their application, and

(ii) no more than 90 days in the period of 12 months ending with the date of their application; and

(c) the person was not in the United Kingdom in breach of the immigration laws at any time in the period of five years ending with the date of their application.

(3) If in the special circumstances of a particular case the Secretary of State thinks fit, the Secretary of State may treat the person as satisfying a requirement specified in subsection (2), even if they did not in fact satisfy the requirement.

(4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 5 Acquisition by registration: British overseas territories citizens having connection with Gibraltar

... A person who is a British overseas territories citizen by virtue of a connection with Gibraltar is entitled to be registered as a British citizen if an application is made for their registration as such a citizen.

Section 6 Acquisition by naturalisation.

(1) If, on an application for naturalisation as a British citizen made by a person of full age and capacity, the Secretary of State is satisfied that the applicant fulfils the requirements of Schedule 1 for naturalisation as such a citizen under this subsection, he may, if he thinks fit, grant to him a certificate of naturalisation as such a citizen.

(2) If, on an application for naturalisation as a British citizen made by a person of full age and capacity who on the date of the application is married to a British citizen, or is the civil partner of a British citizen the Secretary of State is satisfied that the applicant fulfils the requirements of Schedule 1 for naturalisation as such a citizen under this subsection, he may, if he thinks fit, grant to him a certificate of naturalisation as such a citizen.

(3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 7 Right to registration by virtue of residence in U.K. or relevant employment.

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Section 8 Registration by virtue of marriage.

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Section 9 Right to registration by virtue of father’s citizenship etc.

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Section 10 Registration following renunciation of citizenship of U.K. and Colonies.

(1) Subject to subsection (3), a person shall be entitled, on an application for his registration as a British citizen, to be registered as such a citizen if immediately before commencement he would (had he applied for it) have been entitled under section 1(1) of the British Nationality Act 1964 (resumption of citizenship) to be registered as a citizen of the United Kingdom and Colonies by virtue of having an appropriate qualifying connection with the United Kingdom or ... by virtue of having been married before commencement to a person who has, or would if living have, such a connection.

(2) On an application for his registration as a British citizen made by a person of full capacity who had before commencement ceased to be a citizen of the United Kingdom and Colonies as a result of a declaration of renunciation, the Secretary of State may, if he thinks fit, cause that person to be registered as a British citizen if that person—

(a) has an appropriate qualifying connection with the United Kingdom; or

(b) ... has been married to , or has been the civil partner of, a person who has, or would if living have, such a connection.

(3) A person shall not be entitled to registration under subsection (1) on more than one occasion.

(4) For the purposes of this section a person shall be taken to have an appropriate qualifying connection with the United Kingdom if he, his father or his father’s father—

(a) was born in the United Kingdom; or

(b) is or was a person naturalised in the United Kingdom; or

(c) was registered as a citizen of the United Kingdom and Colonies in the United Kingdom or in a country which at the time was mentioned in section 1(3) of the 1948 Act.

(5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 10A Acquisition in connection with immigration rules Appendix EU

(1) This section applies to a person born in the United Kingdom on or after 1st July 2021 who is not a British citizen on the relevant date by virtue of any other provision of this Act.

(2) A person to whom this section applies (“C”) is a British citizen as from the relevant date if conditions 1 to 3 are satisfied in the case of either C’s father or mother (“P”).

(3) Condition 1 is that, on or after 1st July 2021, P is granted—

(a) UK related indefinite leave under paragraph EU2 of Appendix EU to the UK immigration rules;

(b) Isle of Man related indefinite leave under paragraph EU2 of Appendix EU to the Isle of Man immigration rules,

and the date of grant of such leave is referred to in this section as “the relevant date”.

(4) Condition 2 is that—

(a) P is granted the leave described in subsection (3)(a) or (b) pursuant to an application made before 1st July 2021, or

(b) immediately before 1st July 2021, P would have met the eligibility requirements for—

(i) UK related indefinite leave within paragraph EU11 or EU12 of Appendix EU to the UK immigration rules, or

(ii) Isle of Man related indefinite leave within paragraph EU11 or EU12 of Appendix EU to the Isle of Man immigration rules,

if an application had been made at that time.

(5) Condition 3 is that P is ordinarily resident in the United Kingdom on the relevant date.

(6) In determining whether subsection (4)(b) applies, it is to be assumed that P was not entitled to any exemption under section 8 of the Immigration Act 1971 immediately before 1st July 2021.

(7) Any subsequent change to the immigration status of P does not affect the status of C as a British citizen.

(8) In this section—

“Isle of Man immigration rules” means the rules laid down under section 3(2) of the Immigration Act 1971 as that section extends to the Isle of Man;

“Isle of Man related indefinite leave” means indefinite leave as defined in section 33(1) of the Immigration Act 1971 as that section extends to the Isle of Man;

“the relevant date” has the meaning given in subsection (3);

“UK immigration rules” means the rules laid down under section 3(2) of the Immigration Act 1971;

“UK related indefinite leave” means indefinite leave as defined in section 33(1) of the Immigration Act 1971.

Section 11 Citizens of U.K. and Colonies who are to become British citizens at commencement.

(1) Subject to subsection (2), a person who immediately before commencement—

(a) was a citizen of the United Kingdom and Colonies; and

(b) had the right of abode in the United Kingdom under the Immigration Act 1971 as then in force,

shall at commencement become a British citizen.

(2) A person who was registered as a citizen of the United Kingdom and Colonies under section 1 of the British Nationality (No. 2) Act 1964 (stateless persons) on the ground mentioned in subsection (1)(a) of that section (namely that his mother was a citizen of the United Kingdom and Colonies at the time when he was born) shall not become a British citizen under subsection (1) unless—

(a) his mother becomes a British citizen under subsection (1) or would have done so but for her death; or

(b) immediately before commencement he had the right of abode in the United Kingdom by virtue of section 2(1)(c) of the Immigration Act 1971 as then in force (settlement in United Kingdom, combined with five or more years’ ordinary residence there as a citizen of the United Kingdom and Colonies).

(3) A person who—

(a) immediately before commencement was a citizen of the United Kingdom and Colonies by virtue of having been registered under subsection (6) of section 12 of the 1948 Act (British subjects before commencement of 1948 Act becoming citizens of United Kingdom and Colonies) under arrangements made by virtue of subsection (7) of that section (registration in independent Commonwealth country by United Kingdom High Commissioner); and

(b) was so registered on an application under the said subsection (6) based on the applicant’s descent in the male line from a person (“the relevant person”) possessing one of the qualifications specified in subsection (1)(a) and (b) of that section (birth or naturalisation in the United Kingdom and Colonies),

shall at commencement become a British citizen if the relevant person was born or naturalised in the United Kingdom.

Section 12 Renunciation.

(1) If any British citizen of full age and capacity makes in the prescribed manner a declaration of renunciation of British citizenship, then, subject to subsections (3) and (4), the Secretary of State shall cause the declaration to be registered.

(2) On the registration of a declaration made in pursuance of this section the person who made it shall cease to be a British citizen.

(3) A declaration made by a person in pursuance of this section shall not be registered unless the Secretary of State is satisfied that the person who made it will after the registration have or acquire some citizenship or nationality other than British citizenship; and if that person does not have any such citizenship or nationality on the date of registration and does not acquire some such citizenship or nationality within six months from that date, he shall be, and be deemed to have remained, a British citizen notwithstanding the registration.

(4) The Secretary of State may withhold registration of any declaration made in pursuance of this section if it is made during any war in which Her Majesty may be engaged in right of Her Majesty’s government in the United Kingdom.

(5) For the purposes of this section any person who has been married , or has formed a civil partnership, shall be deemed to be of full age.

Section 13 Resumption.

(1) Subject to subsection (2), a person who has ceased to be a British citizen as a result of a declaration of renunciation shall be entitled, on an application for his registration as a British citizen, to be registered as such a citizen if—

(a) he is of full capacity; and

(b) his renunciation of British citizenship was necessary to enable him to retain or acquire some other citizenship or nationality.

(2) A person shall not be entitled to registration under subsection (1) on more than one occasion.

(3) If a person of full capacity who has ceased to be a British citizen as a result of a declaration of renunciation (for whatever reason made) makes an application for his registration as such a citizen, the Secretary of State may, if he thinks fit, cause him to be registered as such a citizen.

(4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 14 Meaning of British citizen (by descent).

(1) For the purposes of this Act a British citizen is a British citizen “ by descent ” if and only if—

(a) he is a person born outside the United Kingdom after commencement who is a British citizen by virtue of section 2(1)(a) only or by virtue of registration under section 3(2) or 9; or

(b) subject to subsection (2), he is a person born outside the United Kingdom before commencement who became a British citizen at commencement and immediately before commencement—

(i) was a citizen of the United Kingdom and Colonies by virtue of section 5 of the 1948 Act (citizenship by descent); or

(ii) was a person who, under any provision of the British Nationality Acts 1948 to 1965, was deemed for the purposes of the proviso to section 5(1) of the 1948 Act to be a citizen of the United Kingdom and Colonies by descent only, or would have been so deemed if male; or

(iii) had the right of abode in the United Kingdom by virtue only of paragraph (b) of subsection (1) of section 2 of the Immigration Act 1971 as then in force (connection with United Kingdom through parent or grandparent), or by virtue only of that paragraph and paragraph (c) of that subsection (settlement in United Kingdom with five years’ ordinary residence there), or by virtue only of being or having been the wife of a person who immediately before commencement had that right by virtue only of the said paragraph (b) or the said paragraphs (b) and (c); or

(iv) being a woman, was a citizen of the United Kingdom and Colonies as a result of her registration as such a citizen under section 6(2) of the 1948 Act by virtue of having been married to a man who at commencement became a British citizen by descent or would have done so but for his having died or ceased to be a citizen of the United Kingdom and Colonies as a result of a declaration of renunciation; or

(c) he is a British citizen by virtue of registration under section 3(1) and either—

(i) his father or mother was a British citizen at the time of the birth; or

(ii) his father or mother was a citizen of the United Kingdom and Colonies at that time and became a British citizen at commencement, or would have done so but for his or her death; or

(d) he is a British citizen by virtue of registration under section 4B , 4C or 5 ; or

(da) the person is a British citizen by descent by virtue of section 4F(3), 4G(2), 4H(2) or 4I(4); or

(db) the person is a British citizen by virtue of registration under section 4K and is—

(i) a British overseas territories citizen by virtue of registration under section 17A, or

(ii) a British overseas territories citizen by descent by virtue of section 17C(3), 17D(2), 17E(2) or 17F(5); or

(e) subject to subsection (2), being a woman born outside the United Kingdom before commencement, she is a British citizen as a result of her registration as such a citizen under section 8 by virtue of being or having been married to a man who at commencement became a British citizen by descent or would have done so but for his having died or ceased to be a citizen of the United Kingdom and Colonies as a result of a declaration of renunciation; or

(f) he is a British citizen by virtue of registration under section 10 who, having before commencement ceased to be a citizen of the United Kingdom and Colonies as a result of a declaration of renunciation, would, if he had not so ceased, have at commencement become a British citizen by descent by virtue of paragraph (b); or

(g) he is a British citizen by virtue of registration under section 13 who, immediately before he ceased to be a British citizen as a result of a declaration of renunciation, was such a citizen by descent; or

(h) he is a person born in a British overseas territory after commencement who is a British citizen by virtue of paragraph 2 of Schedule 2.

(2) A person born outside the United Kingdom before commencement is not a British citizen “by descent” by virtue of subsection (1)(b) or (e) if his father was at the time of his birth serving outside the United Kingdom—

(a) in service of a description mentioned in subsection (3), his recruitment for the service in question having taken place in the United Kingdom; or

(b) in service under a EU institution, his recruitment for that service having taken place in a country which at the time of the recruitment was a member of the Communities.

(3) The descriptions of service referred to in subsection (2) are—

(a) Crown service under the government of the United Kingdom; and

(b) service of any description at any time designated under section 2(3).

Section 15 Acquisition by birth or adoption.

(1) A person born in a British overseas territory after commencement shall be a British overseas territories citizen if at the time of the birth his father or mother is—

(a) a British overseas territories citizen ; or

(b) settled in a British overseas territory .

(2) A new-born infant who, after commencement, is found abandoned in a British overseas territory shall, unless the contrary is shown, be deemed for the purposes of subsection (1)—

(a) to have been born in that territory after commencement; and

(b) to have been born to a parent who at the time of the birth was a British overseas territories citizen or settled in a British overseas territory .

(3) A person born in a British overseas territory after commencement who is not a British overseas territories citizen by virtue of subsection (1) or (2) shall be entitled to be registered as such a citizen if, while he is a minor—

(a) his father or mother becomes such a citizen or becomes settled in a British overseas territory ; and

(b) an application is made for his registration as such a citizen.

(4) A person born in a British overseas territory after commencement who is not a British overseas territories citizen by virtue of subsection (1) or (2) shall be entitled, on an application for his registration as a British overseas territories citizen made at any time after he has attained the age of ten years, to be registered as such a citizen if, as regards each of the first ten years of that person’s life, the number of days on which he was absent from that territory in that year does not exceed 90.

(5) Where after commencement an order authorising the adoption of a minor who is not a British overseas territories citizen is made by a court in any British overseas territory , he shall be a British overseas territories citizen as from the date on which the order is made if the adopter or, in the case of a joint adoption, one of the adopters, is a British overseas territories citizen on that date.

(5A) Where—

(a) a minor who is not a British overseas territories citizen is adopted under a Convention adoption,

(b) on the date on which the adoption is effected—

(i) the adopter or, in the case of a joint adoption, one of the adopters is a British overseas territories citizen, and

(ii) the adopter or, in the case of a joint adoption, both of the adopters are habitually resident in a designated territory, and

(c) the Convention adoption is effected under the law of a country or territory outside the designated territory,

the minor shall be a British overseas territories citizen as from that date.

(6) Where an order or a Convention adoption in consequence of which any person became a British overseas territories citizen by virtue of subsection (5) ceases to have effect, whether on annulment or otherwise, the cesser shall not affect the status of that person as such a citizen.

(7) If in the special circumstances of any particular case the Secretary of State thinks fit, he may for the purposes of subsection (4) treat the person to whom the application relates as fulfilling the requirements specified in that subsection although, as regards any one or more of the first ten years of that person’s life, the number of days on which he was absent from the British overseas territory there mentioned in that year or each of the years in question exceeds 90.

Section 16 Acquisition by descent.

(1) A person born outside the British overseas territories after commencement shall be a British overseas territories citizen if at the time of the birth his father or mother—

(a) is such a citizen otherwise than by descent; or

(b) is such a citizen and is serving outside the British overseas territories in service to which this paragraph applies, his or her recruitment for that service having taken place in a British overseas territory .

(2) Paragraph (b) of subsection (1) applies to—

(a) Crown service under the government of a British overseas territory ; and

(b) service of any description for the time being designated under subsection (3).

(3) For the purposes of this section the Secretary of State may by order made by statutory instrument designate any description of service which he considers to be closely associated with the activities outside the British overseas territories of the government of any British overseas territory .

(4) Any order made under subsection (3) shall be subject to annulment in pursuance of a resolution of either House of Parliament.

Section 17 Acquisition by registration: minors.

(1) If while a person is a minor an application is made for his registration as a British overseas territories citizen the Secretary of State may, if the thinks fit, cause him to be registered as such a citizen.

(2) A person born outside the British overseas territories shall be entitled, on an application for his registration as a British overseas territories citizen made while the person is a minor , to be registered as such a citizen if the requirements specified in subsection (3) or, in the case of a person born stateless, the requirements specified in paragraphs (a) and (b) of that subsection, are fulfilled in the case of either that person’s father or his mother (“the parent in question”).

(3) The requirements referred to in subsection (2) are—

(a) that the parent in question was a British overseas territories citizen by descent at the time of the birth; and

(b) that the father or mother of the parent in question—

(i) was a British overseas territories citizen otherwise than by descent at the time of the birth of the parent in question; or

(ii) became a British overseas territories citizen otherwise than by descent at commencement, or would have become such a citizen otherwise than by descent at commencement but for his or her death; and

(c) that, as regards some period of three years ending with a date not later than the date of the birth—

(i) the parent in question was in a British overseas territory at the beginning of that period; and

(ii) the number of days on which the parent in question was absent from that territory in that period does not exceed 270.

(4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(5) A person born outside the British overseas territories shall be entitled, and on application for his registration as a British overseas territories citizen made while he is a minor, to be registered as such a citizen if the following requirements are satisfied, namely—

(a) that at the time of that person’s birth his father or mother was a British overseas territories citizen by descent; and

(b) subject to subsection (6), that that person and his father and mother were in one and the same British overseas territory (no matter which) at the beginning of the period of three years ending with the date of the application and that, in the case of each of them, the number of days on which the person in question was absent from the last-mentioned territory in that period does not exceed 270; and

(c) subject to subsection (6), that the consent of his father and mother to the registration has been signified in the prescribed manner.

(6) In the case of an application under subsection (5) for the registration of a person as a British overseas territories citizen —

(a) if his father or mother died, or their marriage or civil partnership was terminated, on or before the date of the application, or his father and mother were legally separated on that date, the references to his father and mother in paragraph (b) of that subsection shall be read either as references to his father or as references to his mother; and

(b) if his father or mother died on or before that date, the reference to his father and mother in paragraph (c) of that subsection shall be read as a reference to either of them; ...

(c) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 17A Registration: remedying inability of mothers to transmit citizenship

(1) On an application for registration under this section, a person (“ P ”) is entitled to be registered as a British overseas territories citizen if the following three conditions are met.

(2) The first condition is that—

(a) P would have become a citizen of the United Kingdom and Colonies under any of the following provisions of the British Nationality Act 1948—

(i) section 5 (person born on or after 1 January 1949: citizenship by descent);

(ii) section 12(2) (person born before 1 January 1949: citizenship by descent);

(iii) section 12(3) (person born before 1 January 1949 in British protectorate etc);

(iv) section 12(4) (person born before January 1949 not becoming citizen of other country);

(v) section 12(5) (woman married before 1 January 1949 to a man who became or would have become a citizen of the United Kingdom and Colonies);

(vi) paragraph 3 of Schedule 3 (person born on or after 1 January 1949 to a British subject without citizenship);

had P’s parents been treated equally, by that Act or by any relevant previous provision, for the purposes of determining P’s nationality status; or

(b) P would have been a citizen of the United Kingdom and Colonies immediately before commencement had P’s parents been treated equally, for the purposes of determining P’s nationality status, by any independence legislation that caused P to lose that citizenship.

(3) In subsection (2)—

“ relevant previous provision ” means a provision of the law that was in force at some time before 1 January 1949 which provided for a nationality status to be transmitted from a parent to a child without the need for an application to be made for the child to be registered as a person with that nationality status;

“ independence legislation ” means an Act of Parliament or any subordinate legislation (within the meaning of the Interpretation Act 1978) forming part of the law in the United Kingdom (whenever passed or made, and whether or not still in force)—

providing for a country or territory to become independent from the United Kingdom, or

dealing with nationality, or any other ancillary matters, in connection with a country or territory becoming independent from the United Kingdom.

(4) In determining for the purposes of subsection (2) whether a person would have become a citizen of the United Kingdom and Colonies under section 5 of the British Nationality Act 1948, the requirement that a person’s birth was registered at a United Kingdom consulate, as set out in subsection (1)(b) of that section, is to be ignored.

(5) The second condition is that, if P had become or been a citizen of the United Kingdom and Colonies as mentioned in subsection (2), P would at commencement have become a British Dependent Territories citizen under section 23(1)(b) or (c).

(6) The third condition is that, if P had become a British Dependent Territories citizen as mentioned in subsection (5), P would have become a British overseas territories citizen on the commencement of section 2 of the British Overseas Territories Act 2002.

Section 17B Registration: unmarried fathers; the general conditions

For the purposes of sections 17C to 17F, a person (“ P ”) meets the general conditions if—

(a) at the time of P’s birth, P’s mother—

(i) was not married, or

(ii) was married to a person other than P’s natural father;

(b) no person is treated as the father of P under—

(i) section 28 of the Human Fertilisation and Embryology Act 1990, or

(ii) section 35 or 36 of the Human Fertilisation and Embryology Act 2008;

(c) no person is treated as a parent of P under section 42 or 43 of the Human Fertilisation and Embryology Act 2008; and

(d) P has never been a British overseas territories citizen or a British Dependent Territories citizen.

Section 17C Person unable to be registered under other provisions of this Act

(1) A person (“ P ”) is entitled to be registered as a British overseas territories citizen on an application made under this section if—

(a) P meets the general conditions; and

(b) P would be entitled to be registered as a British overseas territories citizen under—

(i) section 15(3),

(ii) section 17(2),

(iii) section 17(5),

(iv) paragraph 4 of Schedule 2, or

(v) paragraph 5 of Schedule 2,

had P’s mother been married to P’s natural father at the time of P’s birth.

(2) In the following provisions of this section, “ relevant registration provision ” means the provision under which P would be entitled to be registered as a British overseas territories citizen (as mentioned in subsection (1)(b)).

(3) If the relevant registration provision is section 17(2), a person who is registered as a British overseas territories citizen under this section is a British overseas territories citizen by descent.

(4) If the relevant registration provision is section 17(5), the Secretary of State may, in the special circumstances of the particular case, waive the need for any or all of the parental consents to be given.

(5) For that purpose, the “parental consents” are—

(a) the consent of P’s natural father, and

(b) the consent of P’s mother,

insofar as they would be required by section 17(5)(c) (as read with section 17(6)(b)), had P’s mother been married to P’s natural father at the time of P’s birth.

Section 17D Person unable to become citizen automatically after commencement

(1) A person (“ P ”) is entitled to be registered as a British overseas territories citizen on an application made under this section if—

(a) P meets the general conditions;

(b) at any time in the period after commencement, P would have automatically become a British Dependent Territories citizen or a British overseas territories citizen at birth by the operation of—

(i) section 15(1),

(ii) section 16, or

(iii) paragraph 1 of Schedule 2,

had P’s mother been married to P’s natural father at the time of P’s birth; and

(c) in a case where P would have become a British Dependent Territories citizen as mentioned in paragraph (b), P would then have automatically become a British overseas territories citizen by the operation of section 2 of the British Overseas Territories Act 2002.

(2) A person who is registered as a British overseas territories citizen under this section is a British overseas territories citizen by descent if the citizenship which the person would have acquired at birth (as mentioned in subsection (1)(b)) would (by virtue of section 25) have been citizenship by descent.

(3) If P is under the age of 18, no application may be made unless the consent of P’s natural father and mother to the registration has been signified in the prescribed manner.

(4) But if P’s natural father or mother has died on or before the date of the application, the reference in subsection (3) to P’s natural father and mother is to be read as a reference to either of them.

(5) The Secretary of State may, in the special circumstances of a particular case, waive the need for any or all of the consents required by subsection (3) (as read with subsection (4)) to be given.

(6) The reference in this section to the period after commencement does not include the time of commencement (and, accordingly, this section does not apply to any case in which a person was unable to become a British Dependent Territories citizen at commencement).

Section 17E Citizen of UK and Colonies unable to become citizen at commencement

(1) A person (“ P ”) is entitled to be registered as a British overseas territories citizen on an application made under this section if—

(a) P meets the general conditions;

(b) P—

(i) was a citizen of the United Kingdom and Colonies immediately before commencement, or

(ii) would have become such a citizen as mentioned in section 17A(2)(a), or

(iii) would have been such a citizen immediately before commencement as mentioned in section 17A(2)(b);

(c) P would then have automatically become a British Dependent Territories citizen at commencement by the operation of section 23, had P’s mother been married to P’s natural father at the time of P’s birth; and

(d) P would then have automatically become a British overseas territories citizen by the operation of section 2 of the British Overseas Territories Act 2002.

(2) A person who is registered as a British overseas territories citizen under this section is a British overseas territories citizen by descent if the citizenship which the person would have acquired at commencement (as mentioned in subsection (1)(c)) would (by virtue of section 25) have been citizenship by descent.

Section 17F Other person unable to become citizen at commencement

(1) A person (“ P ”) is entitled to be registered as a British overseas territories citizen on an application made under this section if—

(a) P meets the general conditions;

(b) P is either—

(i) an eligible former British national, or

(ii) an eligible non-British national; and

(c) had P’s mother been married to P’s natural father at the time of P’s birth, P—

(i) would have been a citizen of the United Kingdom and Colonies immediately before commencement,

(ii) would have automatically become a British Dependent Territories citizen at commencement by the operation of section 23, and

(iii) would have automatically become a British overseas territories citizen by the operation of section 2 of the British Overseas Territories Act 2002.

(2) In determining for the purposes of subsection (1)(c)(i) whether a person would have been a citizen of the United Kingdom and Colonies, the requirement that a person’s birth was registered at a United Kingdom consulate, as set out in section 5(1)(b) of the British Nationality Act 1948, is to be ignored.

(3) P is an “eligible former British national” if P was not a citizen of the United Kingdom and Colonies immediately before commencement and either—

(a) P ceased to be a British subject or a citizen of the United Kingdom and Colonies by virtue of the commencement of any independence legislation, but would not have done so had P’s mother been married to P’s natural father at the time of P’s birth, or

(b) P was a British subject who did not automatically become a citizen of the United Kingdom and Colonies at commencement of the British Nationality Act 1948 by the operation of any provision of it, but would have done so had P’s mother been married to P’s natural father at the time of P’s birth.

(4) P is an “eligible non-British national” if—

(a) P was never a British subject or citizen of the United Kingdom and Colonies; and

(b) had P’s mother been married to P’s natural father at the time of P’s birth, P would have automatically become a British subject or citizen of the United Kingdom and Colonies—

(i) at birth, or

(ii) by virtue of paragraph 3 of Schedule 3 to the British Nationality Act 1948 (child of male British subject to become citizen of the United Kingdom and Colonies if father becomes such a citizen).

(5) A person who is registered as a British overseas territories citizen under this section is a British overseas territories citizen by descent if the citizenship which the person would have acquired at commencement (as mentioned in subsection (1)(c)(ii)) would (by virtue of section 25) have been citizenship by descent.

(6) In determining for the purposes of subsection (1)(c)(i) whether P would have been a citizen of the United Kingdom and Colonies immediately before commencement, it must be assumed that P would not have—

(a) renounced or been deprived of any notional British nationality, or

(b) lost any notional British nationality by virtue of P acquiring the nationality of a country or territory outside the United Kingdom.

(7) A “notional British nationality” is—

(a) in a case where P is an eligible former British national, any status as a British subject or a citizen of the United Kingdom and Colonies which P would have held at any time after P’s nationality loss (had that loss not occurred and had P’s mother been married to P’s natural father at the time of P’s birth);

(b) in a case where P is an eligible non-British national—

(i) P’s status as a British subject or citizen of the United Kingdom and Colonies as mentioned in subsection (4)(b), and

(ii) any other status as a British subject or citizen of the United Kingdom and Colonies which P would have held at any time afterwards (had P’s mother been married to P’s natural father at the time of P’s birth).

(8) In this section—

“British subject” has any meaning which it had for the purposes of the British Nationality and Status of Aliens Act 1914;

“ independence legislation ” means an Act of Parliament or any subordinate legislation (within the meaning of the Interpretation Act 1978) forming part of the law in the United Kingdom (whenever passed or made, and whether or not still in force)—

providing for a country or territory to become independent from the United Kingdom, or

dealing with nationality, or any other ancillary matters, in connection with a country or territory becoming independent from the United Kingdom;

“ P’s nationality loss ” means P’s—

ceasing to be a British subject or citizen of the United Kingdom and Colonies (as mentioned in subsection (3)(a)), or

not becoming a citizen of the United Kingdom and Colonies (as mentioned in subsection (3)(b)).

Section 17G Sections 17B to 17F: supplementary provision

(1) In sections 17B to 17F and this section, a person’s “natural father” is a person who satisfies the requirements as to proof of paternity that are prescribed in regulations under section 50(9B).

(2) The power under section 50(9B) to make different provision for different circumstances includes power to make provision for the purposes of any provision of sections 17B to 17F which is different from other provision made under section 50(9B).

(3) The following provisions apply for the purposes of sections 17B to 17F.

(4) A reference to a person automatically becoming a citizen of a certain type is a reference to the person becoming a citizen of that type without the need for—

(a) the person to be registered as such a citizen by the Secretary of State or any other minister of the Crown;

(b) the birth of the person to be registered by a diplomatic or consular representative of the United Kingdom; or

(c) the person to be naturalised as such a citizen.

(5) If the mother of a person could not actually have been married to the person’s natural father at the time of the person’s birth (for whatever reason), that fact does not prevent an assumption being made that the couple were married at the time of the birth.

Section 17H Acquisition by registration: descendants of those born in British Indian Ocean Territory

(1) A person is entitled to be registered as a British overseas territories citizen on an application made under this section if—

(a) they are a direct descendant of a person (“ P ”) who was a citizen of the United Kingdom and Colonies by virtue of P’s birth in the British Indian Ocean Territory or, prior to 8 November 1965, in those islands designated as the British Indian Ocean Territory on that date, and

(b) they have never been a British overseas territories citizen or a British Dependent Territories citizen.

(2) An application under this section must be made—

(a) in the case of a person aged 18 years or over on the commencement date, before the end of the period of five years beginning with the commencement date;

(b) in the case of a person aged under 18 on the commencement date, or a person who is born before the end of the period of five years beginning with the commencement date, before they reach the age of 23 years.

(3) In subsection (2), “ the commencement date ” means the date on which this section comes into force.

Section 17I Acquisition by registration: special circumstances

(1) If an application is made for a person of full age and capacity (“ P ”) to be registered as a British overseas territories citizen, the Secretary of State may cause P to be registered as such a citizen if, in the Secretary of State’s opinion, P would have been, or would have been able to become, a British overseas territories citizen but for—

(a) historical legislative unfairness,

(b) an act or omission of a public authority, or

(c) exceptional circumstances relating to P.

(2) For the purposes of subsection (1)(a), “ historical legislative unfairness ” includes circumstances where P would have become, or would not have ceased to be, a British subject, a citizen of the United Kingdom and Colonies, a British Dependent Territories Citizen or a British overseas territories citizen, if an Act of Parliament or subordinate legislation (within the meaning of the Interpretation Act 1978) had, for the purposes of determining a person’s nationality status—

(a) treated males and females equally,

(b) treated children of unmarried couples in the same way as children of married couples, or

(c) treated children of couples where the mother was married to someone other than the natural father in the same way as children of couples where the mother was married to the natural father.

(3) In subsection (1)(b), “ public authority ” means any public authority within the meaning of section 6 of the Human Rights Act 1998, other than a court or tribunal.

(4) In considering whether to grant an application under this section, the Secretary of State may take into account whether the applicant is of good character.

Section 18 Acquisition by naturalisation.

(1) If, on an application for naturalisation as a British overseas territories citizen made by a person of full age and capacity, the Secretary of State is satisfied that the applicant fulfils the requirements of Schedule 1 for naturalisation as such a citizen under this subsection, he may, if he thinks fit, grant to him a certificate of naturalisation as such a citizen.

(2) If, on an application for naturalisation as a British overseas territories citizen made by a person of full age and capacity who on the date of the application is married to such a citizen, or is the civil partner of such a citizen the Secretary of State is satisfied that the applicant fulfils the requirements of Schedule 1 for naturalisation as such a citizen under this subsection, he may, if he thinks fit, grant to him a certificate of naturalisation as such a citizen.

(3) Every application under this section shall specify the British overseas territory which is to be treated as the relevant territory for the purposes of that application; and, in relation to any such application, references in Schedule 1 to the relevant territory shall be construed accordingly.

(4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 19 Right to registration by virtue of residence in British overseas territory .

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Section 20 Registration by virtue of marriage.

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Section 21 Right to registration by virtue of father’s citizenship etc.

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Section 22 Right to registration replacing right to resume citizenship of U.K. and Colonies.

(1) Subject to subsection (3), a person shall be entitled, on an application for his registration as a British overseas territories citizen , to be registered as such a citizen if immediately before commencement he would (had he applied for it) have been entitled under section 1(1) of the British Nationality Act 1964 (resumption of citizenship) to be registered as a citizen of the United Kingdom and Colonies by virtue of having an appropriate qualifying connection with a British overseas territory or ... by virtue of having been married before commencement to a person who has, or would if living have, such a connection.

(2) On an application for his registration as a British overseas territories citizen made by a person of full capacity who had before commencement ceased to be a citizen of the United Kingdom and Colonies as a result of a declaration of renunciation, the Secretary of State may, if he thinks fit, cause that person to be registered as a British overseas territories citizen if that person—

(a) has an appropriate qualifying connection with a British overseas territory ; or

(b) ... has been married to , or has been the civil partner of, a person who has, or would if living have, such a connection.

(3) A person shall not be entitled to registration under subsection (1) on more than one occasion.

(4) For the purposes of this section a person shall be taken to have an appropriate qualifying connection with a British overseas territory if he, his father or his father’s father—

(a) was born in that territory; or

(b) is or was a person naturalised in that territory; or

(c) was registered as a citizen of the United Kingdom and Colonies in that territory; or

(d) became a British subject by reason of the annexation of any territory included in that territory.

(5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section 23 Citizens of U.K. and Colonies who are to become British overseas territories citizens at commencement.

(1) A person shall at commencement become a British overseas territories citizen if—

(a) immediately before commencement he was a citizen of the United Kingdom and Colonies who had that citizenship by his birth, naturalisation or registration in a British overseas territory ; or

(b) he was immediately before commencement a citizen of the United Kingdom and Colonies, and was born to a parent—

(i) who at the time of the birth (“the material time”) was a citizen of the United Kingdom and Colonies; and

(ii) who either had that citizenship at the material time by his birth, naturalisation or registration in a British overseas territory or was himself born to a parent who at the time of that birth so had that citizenship; or

(c) being a woman, she was immediately before commencement a citizen of the United Kingdom and Colonies and either was then, or had at any time been, the wife of a man who under paragraph (a) or (b) becomes a British overseas territories citizen at commencement or would have done so but for his death.

(2) A person shall at commencement become a British overseas territories citizen if—

(a) immediately before commencement he was a citizen of the United Kingdom and Colonies by virtue of registration under section 7 of the 1948 Act (minor children) or section 1 of the British Nationality (No. 2) Act 1964 (stateless persons); and

(b) he was so registered otherwise than in a British overseas territory ; and

(c) his father or mother (in the case of a person registered under the said section 7) or his mother (in the case of a person registered under the said section 1)—

(i) was a citizen of the United Kingdom and Colonies at the time of the registration or would have been such a citizen at that time but for his or her death; and

(ii) becomes a British overseas territories citizen at commencement or would have done so but for his or her death.

(3) A person who—

(a) immediately before commencement was a citizen of the United Kingdom and Colonies by virtue of having been registered under subsection (6) of section 12 of the 1948 Act (British subjects before commencement of 1948 Act becoming citizens of United Kingdom and Colonies) otherwise than in a British overseas territory ; and

(b) was so registered on an application under that subsection based on the applicant’s descent in the male line from a person (“the relevant person”) possessing one of the qualifications specified in subsection (1) of that section (birth or naturalisation in the United Kingdom and Colonies, or acquisition of the status of British subject by reason of annexation of territory),

shall at commencement become a British overseas territories citizen if the relevant person—

(i) was born or naturalised in a British overseas territory ; or

(ii) became a British subject by reason of the annexation of any territory included in a British overseas territory .

(4) A person who—

(a) immediately before commencement was a citizen of the United Kingdom and Colonies by virtue of registration under section 1 of the British Nationality Act 1964 (resumption of citizenship); and

(b) was so registered otherwise than in a British overseas territory ; and

(c) was so registered by virtue of having an appropriate qualifying connection with a British overseas territory or, if a woman, by virtue of having been married to a person who at the time of the registration had or would, if then living, have had such a connection,

shall at commencement become a British overseas territories citizen .

(5) For the purposes of subsection (4) a person shall be taken to have an appropriate qualifying connection with a British overseas territory if he, his father or his father’s father—

(a) was born in a British overseas territory ; or

(b) is or was a person naturalised in a British overseas territory ; or

(c) was registered as a citizen of the United Kingdom and Colonies in a British overseas territory ; or

(d) became a British subject by reason of the annexation of any territory included in a British overseas territory .

(6) For the purposes of subsection (1)(b) references to citizenship of the United Kingdom and Colonies shall, in relation to a time before the year 1949, be construed as references to British nationality.

Section 24 Renunciation and resumption.

... The provisions of sections 12 and 13 shall apply in relation to British overseas territories citizens and British overseas territories citizenship as they apply in relation to British citizens and British citizenship.

Section 25 Meaning of British overseas territories citizen “by descent”.

(1) For the purposes of this Act a British overseas territories citizen is such a citizen “ by descent ” if and only if—

(a) he is a person born outside the British overseas territories after commencement who is a British overseas territories citizen by virtue of section 16(1)(a) only or by virtue of registration under section 17(2) or 21; or

(b) subject to subsection (2), he is a person born outside the British overseas territories before commencement who became a British overseas territories citizen at commencement and immediately before commencement—

(i) was a citizen of the United Kingdom and Colonies by virtue of section 5 of the 1948 Act (citizenship by descent); or

(ii) was a person who, under any provision of the British Nationality Acts 1948 to 1965, was deemed for the purposes of the proviso to section 5(1) of the 1948 Act to be a citizen of the United Kingdom and Colonies by descent only, or would have been so deemed if male; or

(c) he is a British overseas territories citizen by virtue of registration under section 17(1) and either—

(i) his father or mother was a British overseas territories citizen at the time of the birth; or

(ii) his father or mother was a citizen of the United Kingdom and Colonies at that time and became a British overseas territories citizen at commencement, or would have done so but for his or her death; or

(ca) the person is a British overseas territories citizen by virtue of registration under section 17A; or

(cb) the person is a British overseas territories citizen by descent by virtue of section 17C(3), 17D(2), 17E(2) or 17F(5); or

(d) subject to subsection (2), he is a person born outside the British overseas territories before commencement who became a British overseas territories citizen at commencement under section 23(1)(b) only; or

(e) subject to subsection (2), being a woman, she became a British overseas territories citizen at commencement under section 23(1)(c) only, and did so only by virtue of having been, immediately before commencement or earlier, the wife of a man who immediately after commencement was, or would but for his death have been, a British overseas territories citizen by descent by virtue of paragraph (b) or (d) of this subsection; or

(f) subject to subsection (2), being a woman born outside the British overseas territories before commencement, she is a British overseas territories citizen as a result of her registration as such a citizen under section 20 by virtue of being or having been married to a man who at commencement became such a citizen by descent or would have done so but for his having died or ceased to be a citizen of the United Kingdom and Colonies as a result of a declaration of renunciation; or

(g) he is a British overseas territories citizen by virtue of registration under section 22 who, having before commencement ceased to be a citizen of the United Kingdom and Colonies as a result of a declaration of renunciation, would, if he had not so ceased, have at commencement become a British overseas territories citizen by descent by virtue of paragraph (b), (d) or (e);

(h) he is a British overseas territories citizen by virtue of registration under section 13 (as applied by section 24) who, immediately before he ceased to be a British overseas territories citizen as a result of a declaration of renunciation, was such a citizen by descent; or

(i) he is a person born in the United Kingdom after commencement who is a British overseas territories citizen by virtue of paragraph 1 of Schedule 2.

(2) A person born outside the British overseas territories before commencement is not a British overseas territories citizen “by descent” by virtue of subsection (1)(b), (d), (e) or (f) if his father was at the time of his birth serving outside the British overseas territories in service of a description mentioned in subsection (3), his recruitment for the service in question having taken place in a British overseas territory .

(3) The descriptions of service referred to in subsection (2) are—

(a) Crown service under the government of a British overseas territory ; and

(b) service of any description at any time designated under section 16(3).

Section 26 Citizens of U.K. and Colonies who are to become British Overseas citizens at commencement.

Any person who was a citizen of the United Kingdom and Colonies immediately before commencement and who does not at commencement become either a British citizen or a British overseas territories citizen shall at commencement become a British Overseas citizen.

Section 27 Registration of minors.

(1) ... If while a person is a minor an application is made for his registration as a British Overseas citizen, the Secretary of State may, if he thinks fit, cause him to be registered as such a citizen.

(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .