| BS 7961:2004 | Specification for a device for measuring the static vertical mass (noseweight)at the coupling point of the towed vehicle |
| BS AU 113c:1978 | Specification for dimensional characteristics of coupling ball for caravans and light trailers |
| BS AU 114b:1979 | Specification for strength requirements of towing brackets and coupling balls for caravans and light trailers |
| BS AU 138a:1980 | Specification for dimensions of 'contact' type couplings for air pressure braking systems on trailers and semi-trailers and their towing vehicles, and the arrangement of these couplings on articulated and drawbar combinations |
| BS AU 138b:2000 | Towing vehicle, trailer and semi-trailer pneumatic braking systems. ""Contact"" type couplings |
| BS AU 146b:1970 | Specification for standard automatic roller-type coupling for semi-trailers not exceeding 7 1/4 tons laden weight |
| BS AU 166:1977* ISO 3584-1975 | Specification for road vehicles - mounting of mechanical coupling devices on rear cross members of trucks |
| BS AU 187:1983 | Specification for tow rope assemblies for towing passenger cars and light vans |
| BS AU 187:2000 | Tow rope assemblies for towing passenger cars and light vans |
| BS AU 188:1983* ISO 5422-1982 | Specification for anchorages for towing ropes, cables or bars for road vehicles |
| BS AU 190:1983 | Specification for interface dimensions and fixing bolts for the mounting of overrun devices on delta shaped drawbars of trailers up to 2000 kg |
| BS AU 1c:1989* ISO 337-1981 | Specification for dimensions of '50' fifth wheel king pin for semi-trailers |
| BS AU 210-2:1994 | Drawbars for caravans and light trailers. Specification for the design of aluminium drawbars and chassis |
| BS AU 219:1988* ISO 8755:1986 | Specification for dimensions of 40 mm drawbar couplings between commercial road vehicles and trailers |
| BS AU 220:1988* ISO 1102:1986 | Specification for dimensions of 50 mm drawbar couplings between commercial road vehicles and trailers |
| BS AU 235-1:1989* ISO 8717:1988 | Fifth wheel couplings for commercial vehicles. Specification for test conditions and strength requirements |
| BS AU 235-2:1991* ISO 8716:1988 | Fifth wheel couplings for commercial vehicles. Method of testing strength of coupling pins |
| BS AU 239:1991* ISO 8718:1988 | Method of testing strength of drawbar couplings and eyes for hinged drawbars |
| BS AU 241:1991* ISO 1726:1989 | Specification for mechanical coupling between tractors and semi-trailers: interchangeability |
| BS AU 245:1992* ISO 8035:1991 | Specification for front towing attachments for commercial road vehicles and buses over 3.5 t |
| BS AU 24a:1989 | Specification for towing connections for trailers up to 5000 kg gross mass |
| BS AU 253:1993* ISO 11406:1993 | Specification for interchangeability of mechanical coupling between towing vehicles with rear-mounted couplings and drawbar trailers |
| BS AU 25:1964 | Specification for towing hook for use between trailers of 5-14 tons gross weight and towing vehicle |
| BS AU 267:1998 | Code of practice for breakaway cables and secondary couplings |
| BS AU 268:2003 | Passenger cars and light vans. Commercial towing pole assemblies. Specification |
| BS AU 26:1964 | Specification for towing jaw for use between trailers of 5-16 tons gross weight and towing vehicle |
| BS AU 27:1964 | Specification for towing hook for use between trailers of 5-35 tons gross weight and towing vehicle |
| BS AU 28:1964 | Specification for towing jaw for use between trailers of 5-35 tons gross weight and towing vehicle |
| BS AU 29:1964 | Specification for drawbar eyes and forecarriage pins for connection between trailers of 5-35 tons gross weight and towing vehicle |
| BS AU 2a:1970 | Specification for dimensions of 3 1/2 - 4 1/2 in diameter fifth wheel king pin for use with extra heavy duty semi-trailers |
| BS AU 30b:1970 | Specification for standard automatic roller-type coupling for semi-trailers of 7 tons to 14 3/4 tons laden weight |
| BS AU 3:1970 | Specification for clearance dimensions and fifth wheel positions for tractors and semi-trailers |
| BS AU 5:1963 | Specification for dimensions of a 'contact' type coupling for vacuum and pressure braking systems on trailers and semi-trailers |
| BS ISO 1103:2007 | Road vehicles. Coupling balls for caravans and light trailers. Dimensions |
| BS ISO 1726-2:2007 | Road vehicles. Mechanical couplings between tractors and semi-trailers. Interchangeability between low-coupling tractors and high-volume semi-trailers |
| BS ISO 18207:2006 | Road vehicles. Trailers up to 3,5 t. Control of welded towing brackets for coupling ball after fatigue testing |
| BS ISO 3842:2006 | Road vehicles. Fifth wheels. Interchangeability |