LOCOMOTIVES Act
- Sponsor
- Sen. Ernst, Joni [R-IA]
- Committees
- Environment and Public Works Committee (primary)
- Last action
- May 15, 2025
Bottom line
The LOCOMOTIVES Act would establish federal preemption over state-level emission standards for all locomotives engaged in interstate commerce, preventing states from imposing their own regulations on existing railroad engines.
What it actually does
This bill, known as the LOCOMOTIVES Act, amends Section 209(e)(1) of the Clean Air Act to explicitly prohibit states from adopting or enforcing emission standards for existing locomotives and their engines that are engaged in interstate commerce. This expands an existing federal preemption that already applies to new locomotives, ensuring a uniform national standard for all commercial railroad operations.
Proponents argue
Proponents argue that a patchwork of state-specific emission regulations for locomotives would create an undue burden on interstate commerce, hindering the efficiency and economic viability of the national rail network. They contend that a single federal standard is necessary to ensure operational consistency, reduce compliance costs for railroads, and prevent disruptions to the supply chain, while still allowing for federal environmental oversight.
Opponents contend
Opponents might argue that this bill undermines states' rights to protect their local environments and public health from locomotive emissions. They could contend that federal standards may not be stringent enough to address specific regional air quality concerns and that states should have the flexibility to implement stricter controls where necessary, especially in areas heavily impacted by rail traffic.
The bill text is very short and easy to read, but its implications require a deeper understanding of environmental law and interstate commerce.
Section 2
Federal Preemption of State Emission Standards for Existing Locomotives
This provision modifies the Clean Air Act to explicitly prevent individual states from creating or enforcing their own emission control standards for existing locomotives and their engines, provided these locomotives are used in common carrier railroad transportation across state lines. This expands an existing federal preemption that already applies to new locomotives, ensuring that all commercial locomotives operate under a single set of federal emission rules.
Supporters argue
Supporters argue that a uniform federal standard is crucial for the efficient operation of the national rail network, preventing a confusing and costly patchwork of state regulations that would impede interstate commerce and increase operational expenses for railroads.
Critics contend
Critics might argue that this provision strips states of their ability to address specific local environmental and public health concerns related to locomotive emissions, potentially leading to less stringent overall environmental protection in certain regions.
Tradeoffs
The bill balances the desire for a streamlined, efficient national transportation system with states' rights to regulate local environmental quality and public health. It trades potential localized environmental benefits from stricter state standards for the economic efficiency and regulatory predictability of a single federal framework for the rail industry.