Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Interpretations

Interpretation ID: nht91-6.41

DATE: October 25, 1991

FROM: J.W. Lawrence -- Manager, Compliance and Technical Legislation, Volvo GM Heavy Truck Corporation

TO: Administrator, NHTSA

TITLE: Subject: Request for Interpretation, FMVSS - 209 S4.1(f)

ATTACHMT: Attached to letter dated 5/8/92 from Paul J. Rice to J.W. Lawrence (A39; Std. 209)

TEXT:

Volvo GM Heavy Truck requests interpretation of the subsection 4.1(f) attachment hardware requirements:

"... but shall have 7/16-20 UNF 2A of 1/2-BUNC-2A attachment bolts or equivalent hardware."

Does the "equivalent hardware" allow the installation of seat belts in new motor vehicles to be metric sizes and threads? Thank you.