Interpretation ID: nht71-4.10

DATE: 09/13/71

FROM: AUTHOR UNAVAILABLE; L. R. Schneider; NHTSA

TO: Ray. C. Ellsworth Ranches

TITLE: FMVSS INTERPRETATION

TEXT: Thank you for your letter of September 2 inquiring whether your braking system hydraulic valve "is in conformity with the Federal Dual Braking Regulations now in effect."

Federal Motor Vehicle Safety Standard No. 105, Hydraulic Service Brake, Emergency Brake, and Parking Brake Systems, applies to passenger cars, and not to individual items of motor vehicle equipment incorporated in a hydraulic brake system. Thus, there is no Federal Standard to which your valve must conform. If the valve is installed as original equipment in a passenger car, it is the vehicle that would be required to conform to the performance requirements of Standard No. 105.

I have noted your comment that the valve is to be tested on braking systems for military vehicles. You may be interested to know that Federal Motor Vehicle Safety Standards, including No. 105, do not apply to vehicles manufactured for and sold to the Armed Forces of the United States.