Camden's Controlled Parking Zones (CPZs) and the legislation

Regulation 4

Traffic Signs Regulations and General Directions 2002

"controlled parking zone" means either -

(a) an area -

(i) in which, except where parking places have been provided, every road has been marked with one or more of the road markings shown in diagrams 1017, 1018.1, 1019 and 1020.1; and

(ii) into which each entrance for vehicular traffic has been indicated by the sign shown in diagram 663 or 663.1; or

(b) an area -
(i) in which at least one of the signs shown in diagram 640.2A has been placed on each side of every road; and

(ii) into which each entrance for vehicular traffic has been indicated by the sign shown in diagram 665;

Parking Appeals.co.uk will show you how to successfully appeal Penalty Charge Notices issued in CPZs.