Modification, repair and re-rating of old pressure receptacles
7.—(1) Subject to sub-paragraph (2)—
(a)every employer shall ensure that no person employed by him modifies at work the body of an old pressure receptacle, which is used or intended to be used for carriage by road or by rail, and which—
(i)is of seamless construction; or
(ii)has contained acetylene;
(b)every employer shall ensure that no person employed by him modifies at work the body of any type of old pressure receptacle not referred to in paragraph (a), if that modification would put it outside the scope of the design standard or design specification to which it was originally constructed; and
(c)no person shall supply any modified old pressure receptacle for use unless following such modification a person approved under paragraph 3(2)(a) has marked or certified it as being fit for use.
(2) Sub-paragraph (1) shall not apply in relation to any modification constituting the remaking of a thread if such modification is carried out in accordance with a standard approved by the Executive.
(3) Every employer shall ensure that no person employed by him carries out at work any major repair on the body of an old pressure receptacle—
(a)of seamless construction; or
(b)which has contained acetylene.
(4) Every employer shall ensure that no person employed by him carries out at work any major repair on the body of any old pressure receptacle not referred to in sub-paragraph (3) unless he is competent to do so.
(5) No person shall supply an old pressure receptacle which has undergone a major repair unless following such work a person approved under paragraph 3(2)(a) has marked or certified it as being fit for use.
(6) Every employer shall ensure that no person employed by him re-rates an old pressure receptacle at work unless he is competent to do so and does so in accordance with suitable written procedures drawn up by the owner of the old pressure receptacle.
(7) No person shall supply an old pressure receptacle which has been re-rated unless, following the re-rating, a person approved under paragraph 3(2)(a) has certified it as being safe for use.