In DCC Propane LLC v. KMT Enterprises, Inc., No. 24-1780 (2d Cir. August 5, 2025), a company that supplies oil and propane hired a trucking business to deliver 10,000 gallons of heating oil to its property in Putnam, Connecticut. During the delivery, the trucking company’s employee allegedly failed to monitor the filling process, resulting in an overflow that contaminated the soil and groundwater. The supplier claimed it incurred over $500,000 in remediation and related expenses due to the spill.
The supplier filed a lawsuit in the United States District Court for the District of Connecticut, asserting common-law negligence and recklessness claims under Connecticut law. The complaint cited specific federal Hazardous Materials Regulations (HMRs) as evidence of the trucking company’s duties and alleged breaches. The trucking company moved to dismiss, arguing that the supplier’s claims were preempted by the federal Hazardous Materials Transportation Act (HMTA) and, alternatively, that the recklessness claim was insufficiently pleaded. The district court granted the motion, holding that the HMTA preempted the state-law claims and that the recklessness claim failed to state a claim.
On appeal, the United States Court of Appeals for the Second Circuit reviewed the district court’s dismissal de novo. The Second Circuit held that the HMTA does not preempt the supplier’s Connecticut common-law claims for negligence and recklessness, so long as those claims are based on duties that are “substantively the same” as federal requirements under the HMTA and HMRs. The court found that the mental state required for negligence and recklessness under Connecticut law is not inconsistent with the HMTA’s standards for civil violations. Accordingly, the Second Circuit vacated the district court’s judgment and remanded the case for further proceedings.