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STB Clarifies Federal Rail Preemption Reach

[ November 13, 2026   //   ]

The U.S. Surface Transportation Board has issued a policy statement consolidating its interpretation of when federal rail authority preempts state and local laws, potentially strengthening challenges to restrictions affecting railroads and some rail-served projects.

The nonbinding statement, effective Nov. 9, describes two principal standards. State or local requirements that directly regulate or prevent rail transportation may be categorically preempted. Other requirements may be preempted when their application unreasonably burdens or interferes with rail transportation or discriminates against a rail carrier.

The guidance could affect zoning, permitting and other restrictions involving terminals, manufacturing plants, agricultural facilities and energy projects when local action effectively determines whether or how common-carrier rail service can be provided. The STB also identified arguments for stronger federal protection against government or private efforts to take exclusive possession of railroad rights-of-way.

However, the statement does not automatically shield every rail-connected business from local oversight. Rail customers are not themselves rail carriers, and regulation of activities unrelated to receiving or tendering rail service generally remains subject to state and local authority. Routine health and safety measures, nonexclusive property uses and federal environmental and safety laws also may continue to apply.

Individual disputes will remain fact-specific, leaving courts and the STB to determine how broadly the guidance reaches.

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