This Order amends article 3 (interpretation) and Part 5 (miscellaneous special vehicles) of the Road Vehicles (Authorisation of Special Types) (General) Order 2003 (“the 2003 Order”) to make provision for the use of longer semi-trailers (LSTs) on roads as a special type of vehicle, subject to specified authorisation requirements. It also amends Table 16 of Schedule 11 to the 2003 Order (vehicles for tests, trials or non-UK use etc: Construction and Use regulations that do apply) to include regulation 110 (mobile telephones) in the list of provisions of the Road Vehicles (Construction and Use) Regulations 1986 (“the 1986 Regulations”) which apply to such vehicles.