SOURCE-LINKED REGULATION GUIDE
UN R66 — Strength of bus superstructures
Review rollover safety within the bus-superstructure scope.
Explore the scopeWhat does it cover?
UN R66 addresses superstructure strength of the single-deck rigid or articulated buses within its scope. Vehicle category, class and passenger capacity define the core scope. It also identifies other vehicles that may be assessed at the manufacturer’s request.
Who is it for?
Bus manufacturers and superstructure-design and homologation teams.
Which subjects are addressed?
- Superstructure strength
- Vehicle classes
- Passenger capacity
- Scope on request
Common question
Are all buses covered alike?
No. The core scope is limited by class and capacity, with a separate manufacturer-request provision for other M2 and M3 vehicles.
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