Regulation 17 Offences and penalties

fails without reasonable excuse to comply with a notice given under regulation 7(2)(c) or 8(1), or a requirement under regulation 10, 11 or 14, or

without written authority given by a competent authority, intentionally alters, removes, obliterates or defaces a marking made under regulation 7(2)(a) or attempts to do so, or

intentionally obstructs an authorised officer acting in execution of these Regulations,