reg 49 UK marking
(1) Before placing on the market, the UK marking must be affixed visibly, legibly and indelibly to the following: (a) any item of pressure equipment referred to in regulation 6 or its dataplate; and (b) any assembly referred to in regulation 7 or its data plate; or (c) where paragraph (1A) applies— (i) a label affixed to the pressure equipment or assembly; or (ii) to a document accompanying the pressure equipment or assembly. (1A) For a period of seven years beginning with IP completion day, the UK marking may be affixed to— (a) a label affixed to the pressure equipment or assembly; or (b) to a document accompanying the pressure equipment or assembly. (2) The requirement in paragraph (1) does not apply in cases where— (a) the conformity assessment procedure followed in accordance with regulation 42 is either module A2, C2, F or G; and (b) the conformity assessment procedure has been carried out by a user inspectorate. (3) Where paragraph (1A) does not apply and it is not possible or warranted, on account of the nature of the equipment or assembly, to affix the UK marking in accordance with paragraph (1), the UK marking must be affixed to— (a) the packaging; and (b) the accompanying documents. (4) At the time the UK marking is affixed, the item or assembly referred to in subparagraph (1)(a) or (b) must be— (a) complete; or (b) in a state permitting final assessment as described in paragraph 25 (Final assessment) of Schedule 2. (5) Individual items of pressure equipment already bearing the UK marking when incorporated into an assembly must continue to bear that marking, but the UK marking need not be affixed to each additional item of pressure equipment making up an assembly. (6) The UK marking must be followed by the identification number of the approved body which carried out the relevant conformity assessment procedure for the pressure equipment or assembly, where that body is involved in the production control phase. (7) The identification number of the approved body must be affixed— (a) by the approved body itself; or (b) under the instructions of the approved body, by the manufacturer or his authorised representative. (8) The UK marking and, where applicable, the identification number of the approved body may be followed by any other mark indicating a special risk or use.