Decree Law No. 145/2000
Restraints, Anti-Theft Equipment, Statutory and Registration Plates for Two or Three Wheel Vehicles - Reference EC Directive 93/32/EEC, 93/33/EEC, 93/34/EEC and 93/94/EEC.
TSFS 2010:2
Regulations on Vehicles and Trailers Towed by Vehicles.
TSFS 2013:63
Regulations on Cars and Trailers Towed by Cars.