(1) Subject to the provisions of this regulation, on a decision that any employment should be treated, either generally or in relation to any description of persons, as a non-participating employment, becoming effective, the Registrar shall issue to the employer concerned a certificate to that effect.
(2) The certificate shall specify the employments which are to be treated, generally or in relation to any description of persons specified in the certificate, as non-participating employments and the date from which the certificate is to have effect in relation to each such employment; and the certificate shall be sent to the employer and shall be retained by him so long as it remains effective.
(3) Any such certificate may be cancelled or varied by the Registrar where he has reason to suppose that any employment to which it relates ought not be treated as a non-participating employment in accordance with the certificate:
Provided that—
(a) no such cancellation or variation shall have effect, except with the employer's consent, unless the Registrar has served written notice on the employer requiring him to show cause to the satisfaction of the Registrar why the certificate ought not to be so varied or cancelled, and he has not done so within one month of service of the notice, or such further period as the Registrar may allow;
(b) any question arising in relation to the cancellation or variation of a certificate under this paragraph shall be disposed of in accordance with Part IV of these regulations as if it had arisen on an election or revocation of an election made by the employer.
(4) The Registrar shall not issue, vary, cancel or accept the surrender of any certificate in accordance with an election or the revocation of an election made by an employer unless he is satisfied that the steps taken by the employer to comply with the provisions of regulation 3 of these regulations are reasonable in the circumstances of the case.
(5) The Registrar, if he thinks fit, may defer the issue or variation of a certificate to enable the election to be further considered in the light of any representations made by persons to whom notice of the election is required by regulation 3 of these regulations to be given or by organisations representing any such persons.
(6) A certificate or the variation, cancellation or surrender of a certificate shall have effect from the date specified by the Registrar after consultation with the employer, being either–
(a) the first day of any contribution week not earlier than the contribution week following that in which it is issued or made; or
(b)
(i) where the employer has made an election with a view to a certificate or the variation, cancellation or surrender of a certificate having effect from an earlier date and the Registrar is satisfied that there has been no unreasonable delay by the employer in making the election, or
(ii) the certificate is cancelled or varied under paragraph (3) of this regulation, such date, being the first day of any contribution week, as the Registrar may in his discretion determine, but, in any case where notices under regulation 3 were required to be given, not earlier than the first day of any contribution week after the week in which the notices expired:
Provided that–
(a) consultation with the employer shall not be required where the certificate is cancelled or varied under paragraph (3) of this regulation, but if the Registrar determines a date earlier than the first day of the contribution week following that in which it is so cancelled or varied the employer’s consent shall be required to any date so determined; and
(b) the variation of a certificate for the purpose of rectifying an error in the description of persons specified therein may, at the discretion of the Registrar, have effect from the date specified by the employer in the notices required to be given by regulation 3 of these regulations or such later date as the Registrar may determine, being in any case the first day of any contribution week, but not earlier than the date on which the certificate including the error first had effect.
(7) On receipt of a notice to show cause why a certificate should not be cancelled or varied, served on him by the Registrar under paragraph (3) of this regulation, or on the issue, variation, cancellation or surrender of any certificate becoming effective, the employer shall forthwith give notice containing particulars of any superannuation scheme or schemes concerned and the employments and, where appropriate, descriptions of persons affected thereby to the persons to whom and in the manner in which notice of an intention to elect or revoke an election is required to be given under the provisions of regulation 3 of these regulations.
(8) Where, by reason of variation, cancellation or surrender, a certificate has ceased to have effect, the employer, if he has not already done so, shall at the request of the Registrar return the certificate to him; and, in the case of variation, a fresh certificate shall be issued to the employer in accordance with the terms of the variation or, at the discretion of the Registrar, in the case of variation consequent upon the National Insurance Act 1963, the original certificate shall be endorsed to show the terms of the variation and the date from which it is to have effect, and shall be re-issued to the employer.
(9) Any certificate or notice required by this regulation to be sent to or served on an employer shall be treated as duly sent or served if sent to him by registered post or by recorded delivery service at his usual or last-known address or at the address of the principal place at which any employment to which the certificate or notice relates is last known to have been carried on.