USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

PD-6(R)

PD-6(R)
PD and Docket Number ApplicantSubjectRulingDecision

PD-6(R)
PHMSA-RSPA-2000-4952-216 to -224 & 7486-16 to 24)

Chemical Waste Transportation Institute

Michigan statute and regulations re marking of motor vehicles carrying hazardous and liquid industrial wastes

State truck marking requirements different from HMR are preempted under "substantively the same as" test for trucks carrying hazardous materials and are preempted under the "obstacle" test for trucks not carrying hazardous materials.

59 FR 6186 (2/9/94)