U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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All TitlesTitle 49Chapter IPart 172Subpart H - Subpart H—Training
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This subpart and the parts referenced in § 172.700(c) prescribe minimum training requirements for the transportation of hazardous materials. For motor vehicle drivers, however, a State may impose more stringent training requirements only if those requirements—
(a) Do not conflict with the training requirements in this subpart and in part 177 of this subchapter; and
(b) Apply only to drivers domiciled in that State.
