What does it cover?
The UN R181 working text addresses engine fire suppression systems for N-category vehicles specified by ADR. The system as a component and installation of the approved system on the vehicle are assessed in separate parts. Engine compartment scope and vehicle application are read together.
Who is it for?
For vehicle manufacturers, suppliers developing the relevant systems and test or approval teams.
Which subjects are addressed?
- Engine fire suppression system
- Component approval
- Installation on ADR-specified N vehicles
Common question
Does system approval cover installation on every vehicle?
No. Component approval and installation on the vehicles within scope are separate subjects. The R181 working text addresses the two stages separately.
Published RegsUP edition
This page is tied to the published RegsUP working edition below; it is not an official consolidated text.
RegsUP record title: R181 — UN Regulation No. 181
Working series: 00
RegsUP edition publication date:
This is the RegsUP publication decision date, not the date the regulation entered into force.