FMVSS 125

Warning Devices

This Standard establishes shape, size and performance requirements for nonpowered day and night warning devices that can be erected on or near the roadway to warn approaching traffic of the presence
of a stopped vehicle. The purpose of this Standard is to reduce deaths and injuries due to rear-end collisions between moving traffic and disabled vehicles. Application: buses and trucks with a GVWR greater than 4,536 kg (10,000 lbs.).

Applicability:

Trucks & MPVs 10,000 GVWR or Less

No

Trucks More than 10,000 GVWR

Yes

Buses 10,000 GVWR or Less

No

Buses More than 10,000 GVWR

Yes

Trailers

No

Read the Complete Standard