FMVSS 301

Fuel System Integrity*

This Standard applies to MPVs, trucks and buses with a GVWR of 10,000 lbs. (4,536 kg) or less and that use a fuel with a boiling point above 32°F and all school buses that use fuel with a boiling point above 32°F. It specifies requirements for the integrity of motor vehicle fuel systems.

*This Standard specifies barrier testing.

Applicability:

Trucks & MPVs 10,000 GVWR or Less Yes
Trucks More than 10,000 GVWR No 
Buses 10,000 GVWR or Less Yes
Buses More than 10,000 GVWR No 
Trailers No 

Read the Complete Standard