Locomotives and Locomotive Engines; Preemption of State and Local Regulations– Final Rulemaking
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EPA has issued revisions to its regulations that address the preemption of state and local emission regulation of locomotives and engines used in locomotives. This rule implements a policy change that will no longer categorically preempt certain state regulations of non-new locomotives and engines, while retaining exclusive federal authority for the regulation of new locomotives and new locomotive engines. EPA’s regulatory revisions will preserve the ability of California to adopt and enforce certain emission standards regulating non-new locomotives and engines if EPA has authorized such standards. Other states may, in turn, adopt those same California standards.
- Final Rule: Locomotives and Locomotive Engines; Preemption of State and Local Regulations (pdf) (265 KB, November 8, 2023)
- Response to Comments: Revisions to Preemption Regulations for Locomotives and Locomotive Engines (pdf)