Hazardous Materials: Remove Redundant List of U.S. Environmental Protection Agency CERCLA Hazardous Substances
PHMSA proposes removing the redundant list of CERCLA hazardous substances from the Hazardous Materials Regulations, aligning with EPA's list. This is a proposed rule, not yet final.
Aforeworn detected this change in the Trucking / FMCSA Compliance space on August 3, 2026 and published this briefing so affected operators are forewarned rather than caught off guard. It is rated Low urgency. Motor carriers and shippers transporting hazardous materials subject to the Hazardous Materials Regulations. should confirm how it applies to their specific situation before acting. There is a time constraint attached: Not specified; the rule is in the proposed stage.. Acting after that point can mean penalties, a lapsed licence, or lost eligibility — exactly the kind of surprise Aforeworn exists to prevent. Aforeworn monitors Trucking / FMCSA Compliance continuously and turns every detected change into a plain-English briefing like this one, so you always know first. Forewarned is forearmed.
What changed
The proposed rule would remove the redundant list of CERCLA hazardous substances from the HMR, relying solely on EPA's list for identification.
Who it affects
Motor carriers and shippers transporting hazardous materials subject to the Hazardous Materials Regulations.
What you must do
No immediate action required; monitor the rulemaking and prepare to update hazardous materials documentation and training if finalized.
Deadline
Not specified; the rule is in the proposed stage.
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