Title 33 › CHAPTER 40 — OIL POLLUTION › SUBCHAPTER I — OIL POLLUTION LIABILITY AND COMPENSATION › § 2703
A person or company that is responsible for an oil spill can avoid paying cleanup costs or damages if they can show it is more likely than not that the spill and harm were caused only by an act of God, an act of war, or the act or failure of a third party (not their employee or agent, and not a contractor tied to them by contract unless the only contract was for rail carriage). For a third-party defense they must also show they handled the oil with proper care and took steps against foreseeable third-party acts. They also are not responsible to a particular claimant if that claimant’s own gross carelessness or intentional wrongdoing caused the incident. The defense is lost if the responsible party knew or should have known about the spill but failed to report it, refused to help with cleanup when asked, or without good reason ignored certain official orders. Also, if the responsible party caused or helped cause the spill, they cannot use these defenses. A “contractual relationship” means things like land contracts, deeds, easements, or leases, but the defense can still apply if the buyer shows by a preponderance of the evidence that they didn’t know and had no reason to know oil was present when they bought the property, or if they are a government that got the property by escheat, involuntary transfer, or eminent domain, or if they inherited it. In those cases the buyer must also prove they used due care, gave full cooperation and access for cleanup, followed land‑use rules, and did not interfere with controls. To show they had no reason to know, they must prove they did “all appropriate inquiries” into past uses before buying and took reasonable steps to stop or limit any discharge. The Secretary, with EPA, had to set formal inquiry rules within 2 years after August 9, 2004. Until those rules, the ASTM Standard E1527–97 works for property bought on or after May 31, 1997. For residential buyers who are not commercial, a clean inspection and title search can be enough. If a previous owner knew of a spill and sold without telling, that owner stays liable.
Full Legal Text
Navigation and Navigable Waters, Source: USLM XML via OLRC
Legislative History
Reference
Citation
33 U.S.C. § 2703
Title 33, Navigation and Navigable Waters
Last Updated
Sep 22, 2026
Release point: 119-110