The Act Commentary on Sections Part 7: Noise Section 73 Offences under section 71:fixed penalty notices
202.Section 73 (subsections (1)  and (2)) enables an “authorised officer” of a local authority, to issue a fixed penalty notice where it appears to him that an offence of failing to nominate or notify details of a key-holder has been committed, offering the offender an opportunity to discharge, by payment of a fixed penalty within 14 days, any liability to conviction for the offence. Who qualifies as an authorised officer is described in subsection (11). The rest of the section sets out the effects of the fixed penalty notice, what information such a notice should contain, and procedures for payment.