PolicyBrief
H.R. 3194
119th CongressMay 5th 2025
Lifting Overburdensome Commerce Obstructions and Motives Act
IN COMMITTEE

The LOCOMOTIVES Act amends the Clean Air Act to prevent states from setting emission standards for locomotives and engines used in locomotives engaged in interstate commerce.

John Moolenaar
R

John Moolenaar

Representative

MI-2

LEGISLATION

LOCOMOTIVES Act: Feds Could Take Full Control of Train Pollution Rules, Sidestepping States

There's a new bill on the tracks, the 'Lifting Overburdensome Commerce Obstructions and Motives Act' – or LOCOMOTIVES Act for short – and it's looking to make a big change to who calls the shots on train pollution. In a nutshell, this proposal aims to amend the Clean Air Act, the nation's main rulebook for air quality, to stop states from creating or enforcing their own emission standards for locomotives and their engines. The goal is to put the federal government firmly in the engineer's seat when it comes to these regulations, especially for trains hauling goods for business.

The Feds Want the Keys to the Locomotive (Pollution Rules, That Is)

So, what’s actually happening here? The bill targets a specific part of the Clean Air Act (Section 209(e)(1) of 42 U.S.C. 7543, if you're into the details) that deals with state-level rules for certain engines. The LOCOMOTIVES Act would essentially say that when it comes to trains – specifically those chugging along as 'common carrier railroad transportation for compensation' (think big freight companies covered under 49 U.S.C. 10102) – states can no longer set their own limits on what comes out of the smokestacks. This means if a state wanted to enforce stricter pollution controls on trains passing through its borders than what the federal government requires, this bill would block that move. It's a clear shift, handing nearly all the regulatory power over locomotive emissions to the federal level, as outlined in the proposed changes to Section 2 of the bill.

Your State's Smog Fight: Derailed by D.C.?

This is where it gets real for folks on the ground, especially if you live near busy rail lines or in an area already battling air pollution. Right now, some states can and do take extra steps to tackle localized air quality problems. This bill, by amending Section 209(e)(1) of the Clean Air Act, could significantly limit that power when it comes to locomotives. Imagine your community has been working with state environmental agencies to push for cleaner trains because the local railyard is a major pollution source. Under this Act, those state-level efforts to set tougher emission standards for locomotives would likely hit a federal roadblock. The concern here is that a one-size-fits-all federal standard might not be strong enough to protect air quality in communities that need it most, potentially leaving residents with fewer tools to fight for cleaner air where they live and work.

One Rule for All Trains: Simpler for Companies, But What About Your Air?

Now, the argument for a bill like this often boils down to making things simpler and more uniform for industries that operate across the country. Railroad companies would likely prefer a single federal emission standard to navigate, rather than a patchwork of different state rules, potentially lowering their compliance costs. However, as Section 2 of the bill centralizes this authority, this streamlining comes at a potential cost: local control and possibly public health. By concentrating all rulemaking power in Washington D.C., the LOCOMOTIVES Act effectively removes a layer of environmental protection that states could otherwise provide. This also means that the stringency of locomotive emission standards nationwide would hinge solely on federal decisions, with states unable to set a higher bar even if their local conditions and residents demand it.