Regulation 4(27)
PART IVehicles constructed, adapted or in use for the purpose of a trade or business which may be driven or ridden on a Park road
1. A taxi.
2. A vehicle in use for the purpose of transacting business with any person either residing in a Palace or Park or using land therein under licence from the Secretary of State.
3. A vehicle in use for the purpose of the repair or removal of any other vehicle which is broken down in a Park.