Interpretation ID: aiam2665
Group Director of Engineering
Bendix Heavy Vehicle Systems Group
The Bendix Corporation
901 Cleveland Street
Elyria
OH 44035;
Dear Mr. Hildebrandt: This is to advise you that the National Highway Traffic Safet Administration (NHTSA) has decided to grant The Bendix Corporation's September 14, 1977, petition requesting the revision of the parking brake release requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 121, *Air Brake Systems*. A similar petition was received from Fruehauf Corporation and it is also being granted.; You should understand that our commencement of a rulemaking proceedin does not signify that the rule in question will be issued. A decision to the issuance of the rule will be made on the basis of all available information developed in the course of the rulemaking proceeding, in accordance with statutory criteria.; You also requested written confirmation that the interpretation o S5.6.3 of FMVSS No. 121 given by NHTSA to Motor Coach Industries, Inc. on April 14, 1976, would pertain to the air/spring parking brake system described in your letter. Your assumption is correct, and this letter constitutes such written confirmation.; Sincerely, Robert L. Carter, Associate Administrator, Motor Vehicl Programs;