In this Schedule—

• “fixed penalty” shall be construed in accordance with paragraph 4;

• “fixed penalty notice” means a notice offering an opportunity to discharge any liability to conviction of the offence to which the notice relates by payment of a fixed penalty in accordance with this Schedule;

• “fixed penalty offence” means an offence under paragraph (a) or (b) of section 21;

• “prescribe” means prescribe by regulations subject to negative resolution.