SB 1779, the LOCOMOTIVES Act, would amend the Clean Air Act to bar states from adopting or enforcing their own emissions standards for existing locomotives and engines used in locomotives. The bill specifically targets state-level regulation of locomotive emissions and defines the covered equipment to include locomotives engaged in commerce, including common carrier railroad transportation for compensation. In practical terms, it would centralize regulatory authority over locomotive emissions at the federal level rather than allowing states to impose separate standards.
The bill also makes conforming changes to Clean Air Act language governing preemption of state standards for certain nonroad engines and vehicles. By revising Section 209(e)(1), it would expand and clarify the categories of engines and vehicles subject to federal regulation and state preemption, while expressly adding locomotives and engines used in locomotives to the list. The measure is framed as a commerce and regulatory uniformity bill, and its title suggests an intent to reduce what sponsors view as burdensome state restrictions on rail operations.
Impact
If enacted, SB 1779 would preempt state emissions standards for existing locomotives and locomotive engines, limiting states’ ability to regulate rail-related air pollution under their own laws. It would amend Section 209 of the Clean Air Act, affecting the balance of federal and state authority over locomotive emissions and likely constraining state climate, air quality, and rail decarbonization initiatives. The primary parties affected would be railroads, locomotive manufacturers and operators, state environmental agencies, and communities seeking stricter local emissions controls.
Sentiment
Based on the bill’s sponsorship and framing, the measure appears to have support from senators who favor federal uniformity and oppose a patchwork of state emissions rules affecting interstate rail commerce. The bill was introduced by Senator Ernst with a group of Republican cosponsors and referred to the Senate Committee on Environment and Public Works. No committee transcript or vote record is provided, so there is no recorded public debate in the supplied materials, but the bill’s title and text indicate a pro-industry, deregulatory posture.
Contention
The main point of contention is likely federal preemption versus state authority. Supporters would argue that a single national standard is necessary for interstate rail commerce and to avoid conflicting state requirements, while opponents would likely argue that states should retain the power to address locomotive pollution, especially in areas affected by rail yards and freight corridors. Environmental advocates, state regulators, and some local communities would likely object to the bill because it would remove a tool for reducing emissions from older locomotives, while rail industry stakeholders and preemption advocates would likely support it.