The Carriage of Dangerous Goods by Road Regulations 1996

3.  These Regulations shall not apply to or in relation to the carriage of dangerous goods in—

(a) a vehicle which is not being used for, or in connection with, work;

(b) a vehicle which is being used to transfer the goods—

(i) between private premises and another vehicle situated in the immediate vicinity of those premises, or

(ii) between one part of private premises and another part of those premises situated in the immediate vicinity of that first part where both parts are occupied by the same person, notwithstanding that those parts may be separated by a road; or

(c) a road construction vehicle engaged in the repair or construction of a road; and in this sub-paragraph—

(i) “road construction vehicle” means a vehicle constructed or adapted for the carriage of built-in road construction machinery and not constructed or adapted for the carriage of any other load, except articles and materials used for the purposes of that machinery.

(ii) “built-in road construction machinery” means road construction machinery built in as part of a road construction vehicle or permanently attached to it,

(iii) “road construction machinery” means a machine or contrivance suitable for the repair and construction of roads, and