Regulation 4 General requirements
No person shall ride, or cause or permit to be ridden, on a road an electrically assisted pedal cycle unless—
it is—
fitted with a plate securely fixed in a conspicuous and readily accessible position showing—
the name of the manufacturer;
the nominal voltage of the battery as defined in the 1971 British Standard; and
the continuous rated output of the motor as defined in the 1971 British Standard; or
visibly and durably marked with—
the name of the manufacturer;
the maximum speed at which the motor can propel the vehicle specified in miles per hour or kilometres per hour; and
the maximum continuous rated power of the motor specified in watts or kilowatts;
fitted with a battery which does not leak so as to be a source of danger; and
fitted with a device biased to the off position which allows power to come from the motor only when the device is operated so as to achieve that result.