http://www.legislation.gov.uk/eudr/1992/55/adoptedCouncil Directive 92/55/EEC of 22 June 1992 amending Directive 77/143/EEC on the approximation of the laws of the Member States relating to roadworthiness tests for motor vehicles and their trailers (exhaust emissions)Council Directive 92/55/EECenQueen's Printer of Acts of Parliament2019-09-07