What does it cover?
UN R170 addresses built-in child restraint systems in specified M2 and M3 bus classes. The scope concerns children 40–150 cm tall in forward- or rear-facing seats. A manufacturer-requested route is separately defined for other bus classes.
Who is it for?
For vehicle manufacturers, suppliers developing the relevant systems and test or approval teams.
Which subjects are addressed?
- Built-in child restraint systems
- Children 40–150 cm and seating direction
- M2/M3 bus classes
Common question
Is R170 an approval for every portable child seat?
No. It addresses systems built into buses and specified vehicle classes. This is not the same scope as approval of a portable child seat.
Published RegsUP edition
This page is tied to the published RegsUP working edition below; it is not an official consolidated text.
RegsUP record title: R170 — UN Regulation No. 170
Working series: 00 · Included supplement: 1
RegsUP edition publication date:
This is the RegsUP publication decision date, not the date the regulation entered into force.