Changes made by Council Directive 78/548/EEC of 12 June 1978 on the approximation of the laws of the Member States relating to heating systems for the passenger compartment of motor vehicles
EU Directive 1978/548
No changes made by Council Directive 78/548/EEC of 12 June 1978 on the approximation of the laws of the Member States relating to heating systems for the passenger compartment of motor vehicles are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.