Camera equipment used by traffic authorities for civil parking enforcement has to be certified by the Secretary of State for Transport. The Department for Transport (DFT) is aware of one authority whose certified system uses Automatic Number Plate Recognition (ANPR) technology to assist the visual identification of vehicles when the evidence is reviewed. Any system that relied solely on ANPR evidence would not comply with the certification criteria.
Guidance for traffic authorities in England on the use of camera technology for civil parking enforcement is set out on pages 55 to 58 of DFT's “Operational Guidance to Local Authorities on Parking Policy and Enforcement”, issued in March 2008.