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PD-5(R): Mass. requirement for back-up alarm on tank trucks carrying flammable liquids

PD-5(R)
PD and Docket Number ApplicantSubjectRulingDecision

PD-5(R)
PHMSA-RSPA-2003-14661

National Tank Truck Carriers, Inc.

Massachusetts requirement for back-up alarm on tank trucks carrying flammable liquids

State tank truck back-up alarm requirement applicable only to in-state transportation is not preempted under the "obstacle" test.

58 FR 62707 (11/29/93).