The Road Traffic Act 1961 includes in the definition of a "mechanically propelled vehicle" both "a bicycle . . . with an attachment for propelling it by mechanical power" and "a vehicle the means of propulsion of which is electrical or partly electrical and partly mechanical". A mechanically propelled vehicle is required to comply with the various provisions of the Act which, among other things, require the user to have third party insurance in a public place. The vehicle also has to comply with the provisions of the Road Traffic (Construction, Equipment and Use of Vehicles) Regulations and the Road Traffic (Lighting of Vehicles) Regulations. Electric bicycles are also subject to motor tax.
As regards vehicle registration tax, VRT, section 130 of the Finance Act 1992 defines a "mechanically propelled vehicle" as: a vehicle intended or adapted for propulsion by a mechanical means, including
(a) a bicycle, tricycle or quadricycle propelled by an engine or motor or with an attachment for propelling it by mechanical power, whether or not the attachment is being used, a moped, a scooter and an autocycle, and
(b) a vehicle the means of propulsion of which is electrical or partly electrical and partly mechanical.
The effect of this section is that electric bicycles are liable to VRT and, as such, must be presented at a Vehicle Registration Office for registration. The VRT rates of duty which are payable on the registration of such vehicles are: €2 per cubic centimetre where the cubic capacity of an engine does not exceed 350 cc; €1 per cubic centimetre in respect of each additional cubic centimetre in excess of 350 cc.