(1) It is the duty of a Chapter under section 13(1) to compile and maintain an inventory the purpose of which is to—
(a) identify and record any object considered by the fabric advisory committee to be of architectural, archaeological, artistic or historic interest which is owned by or in the possession or custody of the corporate body or to the possession or custody of which the corporate body is entitled notwithstanding that the object is for the time being in the possession or custody of another person or body;
(b) note the designation by the fabric advisory committee, after consultation with the Commission, of those objects in the inventory considered to be of outstanding architectural, archaeological, artistic or historic interest;
(c) record in the inventory any new acquisition by the corporate body, whether by purchase or gift, of an object considered by the fabric advisory committee to be of architectural, artistic or historic interest, and to note any designation of such object under paragraph (b);
(d) aid the proper care, conservation and security of the objects included in the inventory;
(e) record the loan, sale, disposal or loss of any object entered in the inventory.
(2) For the purpose of consideration by the fabric advisory committee of objects suitable for inclusion in the inventory an object shall be treated as including, in particular, movable and removable items and contents such as ornaments, furnishings and fittings, books and manuscripts, displaced architectural and archaeological materials, musical instruments and other artefacts of interest.
(3) The period within which a Chapter shall complete the compilation of an inventory is to be determined by the Commission after consultation with the Chapter and the fabric advisory committee and shall be such period as the Commission considers reasonable having regard to the particular circumstances of each case and different periods may be specified by the Commission for different parts of the inventory.
(4) In the interest of security, where an inventory is compiled and maintained in any electronic form all relevant files or other records of information in electronic form which are prepared for the purpose of, or in connection with, the compilation or maintenance of that inventory, including any updating, amendment or new recording under sub-rule (6) of this rule, shall be securely stored in accordance with such advice as may be published from time to time by the Commission.
(5) The inventory is an important record in relation to the cathedral, and (whether or not it is compiled and maintained in any electronic form)—
(a) two copies in writing of the inventory shall be made and maintained in securely bound volumes (which may include a separate volume for recording any new acquistion within sub-rule (1)(c)); and
(b) both of these copies shall be kept in a secure place, one within and the other outside the cathedral precinct, approved for that purpose by the Chapter.
(6) When information in the inventory requires to be updated or amended under sub-rule (1) or otherwise the updating or amendment shall as soon as reasonably practicable be done in identical terms—
(a) in both copies of the relevant volume made and maintained in writing under sub-rule (5)(a); and
(b) where the inventory is also compiled and maintained in electronic form, in that inventory.
(7) A photographic record of objects recorded in the inventory shall be bound into or retained as part of a loose leaf collection in conjunction with the inventory except where in a particular case the fabric advisory committee informs the Chapter in writing that it considers it unreasonable to require the provision of such a record of a particular object or group of objects.
(8) All entries in an inventory shall be made in accordance with such general or special directions as may be issued by the Commission from time to time for the purpose of section 13(1) and in compiling and maintaining the inventory the Chapter shall have regard to any advice as to details of the form of the inventory which may be issued by the Commission from time to time.
(9) In the interests of security access to the inventory or any part of it shall be limited to those persons who have been expressly authorised in writing by the Chapter and who at the time of inspection of the inventory provide such authorisation and such documentary evidence of personal identification as the Chapter may require.
(10) The Chapter shall make an annual report to the fabric advisory committee on the contents of the inventory or on progress made in compiling the inventory, which shall, in particular, certify the accuracy of the inventory, or any part of it which has been compiled, and describe any alterations which have been made to the inventory during the 12 months preceding the report.