The Motor Vehicles (Construction and Use) (Amendment) Regulations (Northern Ireland) 2010
Regulation 7 of the Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 (“the 1999 Regulations”) specifies the maximum permitted widths of road vehicles. It is an offence to tow a trailer which exceeds the relevant width. A maximum width of 2.3 metres is (with certain exceptions) specified in the case of a trailer drawn by a motor vehicle having a maximum gross weight of 3500 kg or less.