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ECE R-170
Child Restraint Systems for Buses and Coaches
Applies to
M
Topic
Occupant safety
Framework
UN ECE
Velocert services
European
Overview
UN Regulation No 170 lays down uniform provisions for the approval of Child Restraint Systems for safer transport of children in buses and coaches. It contains general specifications and test requirements; its annexes cover tests such as overturning, the dynamic test, corrosion and abrasion.
This summary is based on the version published on EUR-Lex, the original version, Supplement 1 (2026), which is the current series. GlobalAutoRegs also lists the 01 series and Supplement 1 to it with no entry-into-force date. Checked on GlobalAutoRegs, 1 November 2026. For the current text, see the UN (UNECE) page.
Scope
It applies to Built-in Child Restraint Systems installed in vehicles of categories M2 and M3, class B and class III, with regard to securing children from 40 to 150 cm in forward-facing and rearward-facing seats. At the manufacturer's request it may also apply to such systems in M2 or M3 vehicles of classes I, II and A.
The regulation applies to the following vehicle categories:
M
Passenger vehicles
Official source
For the requirements of this regulation, refer to the official text in force and its amendments.
Official UNECE text