Sch 7 para 8
(1) A moving traffic contravention is— (a) an offence under section 36 of the Road Traffic Act 1988 (c. 52) of failing to comply with the indication given by a traffic sign that is subject to civil enforcement (see paragraphs 8A and 9), or (b) an offence of failing to comply with a traffic order in so far as it makes provision for a requirement, restriction or prohibition that is conveyed by a traffic sign subject to civil enforcement. (2) In sub-paragraph (1)(b) “ traffic order ” means an order under section 1, 6, 9, 14 or 16A of the Road Traffic Regulation Act 1984 (c. 27). (3) If conduct is both a moving traffic contravention and a London lorry ban contravention (see Part 3 above), a penalty charge may only be imposed on the latter basis. (4) If in any other case the same conduct is a moving traffic contravention under sub-paragraph (1)(a) and (b), a penalty charge may be imposed on either basis but not both.