13.—(1) The user of an installed system and the owner of a mobile system shall, subject to paragraph (4), keep the following documents or copies thereof:–
(a)the last report relating to the system made by the competent person pursuant to regulation 9(3);
(b)any such previous reports if they contain information which will materially assist in assessing whether–
(i)the system is safe to operate, or
(ii)any repairs or modifications to the system can be carried out safely;
(c)any documents provided pursuant to regulation 5 which relate to those parts of the pressure system included in the scheme of examination; and
(d)any agreement made pursuant to regulation 9(7), and, in a case to which regulation 9(8) applies, a copy of the notification referred to in regulation 9(7)(c), until a further examination has been carried out since that agreement or notification under the scheme of examination.
(2) The documents required to be kept by this regulation shall be kept–
(a)in the case of an installed system, at the premises where the system is installed, or at other premises approved for the purposes of this sub-paragraph by the enforcing authority responsible for enforcing these Regulations at the premises where the system is installed;
(b)in the case of a mobile system, at the premises in Great Britain from which the deployment of the system is controlled.
(3) Where the user or owner of a pressure system or part thereof changes, the previous user or owner shall as soon as is practicable give to the new user or owner all documents (relating to the system or part thereof, as the case may be) kept by him under this regulation, or copies thereof.
(4) Subject to paragraph (6) it shall be sufficient compliance with regulation 9(3) if the individual making the examination enters his report in a computer and duly authenticates it as soon as is practicable after completing the examination (or, in the case of integrated installed systems where the examination is part of a series, as soon as is practicable after completing the last examination in that series), and in any event by the time referred to in regulation 9(3)(a) or (b), whichever is sooner; and in such a case it shall be sufficient compliance with sub-paragraphs (a) or (b) of paragraph (1) if the report is kept by the user in a computer.
(5) Where the procedure referred to in paragraph (4) is used in respect of the reports mentioned in sub-paragraph (a) or (b) of paragraph (1) and the user or owner of the pressure system or part thereof changes, the previous user or owner shall provide in writing to the new user or owner the information contained in those reports.
(6) The procedure referred to in paragraph (4) may only be used if the report–
(a)is capable of being reproduced as a written copy when required at the premises referred to in the appropriate sub-paragraph in paragraph (2);
(b)is secure from loss or unauthorised interference; and
(c)can be authenticated only by the individual making the examination.
(7) In this regulation “computer” means the computer system including the software.