SOURCE-LINKED REGULATION GUIDE
UN R102 — Close-coupling devices
Explore close-coupling devices that provide clearance as a tractor and trailer move relative to one another.
Explore the scopeWhat does it cover?
UN R102 concerns close-coupling devices for vehicles in categories N2, N3, O3 and O4. It defines a device that automatically provides the additional clearance needed when the vehicles move angularly. Approval of the device itself and approval of its installation on a vehicle are separate matters.
Who is it for?
Coupling-device manufacturers, heavy-vehicle and trailer designers, and homologation teams.
Which subjects are addressed?
- Definition of a close-coupling device
- Device type approval
- Installation of an approved device
- Vehicle-category limits
Common question
Does R102 apply to every coupling device?
No. It addresses close-coupling devices that automatically provide the required clearance. Couplings with no length- or angle-adjustment effect are outside its scope.
Source documents and references
Work with this regulation in RegsUP.
Read the text with its edition and sources. Assess available comparisons, relevant dates and question-and-answer features against your work needs.
Discuss access options