Federal Motor Vehicle Safety Standards; Hydraulic and Electric Brake Systems
fmvss · National Highway Traffic Safety Administration · Published 2004-12-17 · Effective 2005-01-18 · 69 FR 75486
Document
Document number
04-27595
Federal Register citation
69 FR 75486
CFR reference
49 CFR 571
Type
Rule
Action
Final rule.
Category
fmvss
Sub-agency
National Highway Traffic Safety Administration
Publication date
2004-12-17
Effective date
2005-01-18
DOT docket
Docket No. NHTSA-04-19892
Abstract
In this document, NHTSA is establishing an option in the Federal motor vehicle safety standard on hydraulic and electric brake systems to permit the use of a roll bar structure during specified testing of brake systems in single unit trucks and buses. This option is already available for similar testing of air braked trucks and buses. Permitting the use of a roll bar structure will help protect drivers and technicians in the event of a rollover during testing of hydraulically-braked trucks and buses. The safety of drivers and technicians is a primary concern during vehicle testing. The use of a roll bar structure offers protection to the drivers and technicians performing brake tests conducted at lightly loaded vehicle weight.