Registration number and registration number plate for registered power‑assisted bicycle
11.—(1)  The Registrar must assign a registration number for every registered power-assisted bicycle.
(2)  Subject to paragraph (3), an owner of a registered power‑assisted bicycle must affix on the registered power‑assisted bicycle, a registration number plate that complies with all of the requirements specified in the Second Schedule.
(3)  The owner must affix the registration number plate on a registered power-assisted bicycle not later than 3 days after the Registrar assigns the registration number under paragraph (1), or such longer period as the Registrar may allow in any particular case (called in this rule the deadline).
(4)  An owner of a registered power-assisted bicycle who —
(a)does not affix a registration number plate on the registered power‑assisted bicycle;
(b)affixes on the registered power-assisted bicycle, a registration number plate that does not comply with any requirement specified in the Second Schedule; or
(c)affixes on the registered power-assisted bicycle, a registration number plate after the deadline,
shall be guilty of an offence.