The Carriage of Dangerous Goods by Road Regulations 1996

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

(a) the motor vehicle which is being used for the carriage of those goods is registered outside the United Kingdom and the carriage is confined to Great Britain but nevertheless conforms with the provisions of ADR as if it were part of an international transport operation;

(b) the carriage forms part of an international transport operation within the meaning of article 1(c) of ADR and conforms with the provisions of that agreement;

(c) the carriage forms part of an international transport operation which is subject to any bilateral or multilateral special agreement made under the terms of article 4.3 of ADR to which the United Kingdom is a signatory and conforms with any conditions attached to the agreement;

(d) the carriage forms part of an international transport operation within the meaning of article 1(c) of ADR and the dangerous goods are being carried in—

(i) a vehicle owned by the armed forces, or

(ii) a vehicle under the control of the armed forces,

of a country which is a contracting party to ADR;