Federal Motor Vehicle Safety Standards; Fuel System Integrity of Compressed Natural Gas Vehicles

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On April 25, 1994, NHTSA published a new Federal motor vehicle safety standard, Standard No. 303, Fuel System Integrity of Compressed Natural Gas Vehicles. The standard limits the amount of allowable CNG leakage after a crash test by limiting the post-crash pressure drop of the fuel system. Ford Motor Company, Chrysler Corporation, and the American Automobile Manufacturers Association, submitted petitions for reconsideration of the final rule. The issues raised in the petitions include the allowable pressure drop limit, submitted by Ford and Chrysler, and other pre-crash test conditions and procedures, submitted by AAMA. NHTSA is denying the petitions of Ford and Chrysler concerning pressure drop limit, and denying in part and granting in part the requests by AAMA.