8.—(1) The user of an installed system and owner of a mobile system shall not operate the system or allow it to be operated unless he has a written scheme for the periodic examination, by a competent person, of the following parts of the system, that is to say –
(a)all protective devices;
(b)every pressure vessel and every pipeline in which (in either case) a defect may give rise to danger; and
(c)those parts of the pipework in which a defect may give rise to danger,
and such parts of the system shall be identified in the scheme.
(2) The said user or owner shall –
(a)ensure that the scheme has been drawn up, or certified as being suitable, by a competent person;
(b)ensure that –
(i)the content of the scheme is reviewed at appropriate intervals by a competent person for the purpose of determining whether it is suitable in current conditions of use of the system; and
(ii)the content of the scheme is modified in accordance with any recommendations made by that competent person arising out of that review.
(3) A person shall not draw up or certify a scheme of examination under paragraph (2)(a) unless the scheme is suitable and –
(a)specifies the nature and frequency of examination;
(b)specifies any measures necessary to prepare the pressure system for safe examination other than those it would be reasonable to expect the user (in the case of an installed system) or owner (in the case of a mobile system) to take without specialist advice; and
(c)where appropriate, provides for an examination to be carried out before the pressure system is used for the first time.
(4) References in paragraphs (2) and (3) to the suitability of the scheme are references to its suitability for the purposes of preventing danger from those parts of the pressure system included in the scheme.