
Reducing Rail Emissions in California
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CARB has developed and implemented measures to understand and reduce locomotive and railyard emissions in California, including studies, regulations, enforceable agreements, and funding of clean technology.
More about this program
Proposed In-Use Locomotive Regulation
All regulatory documents for the Proposed In-Use Locomotive Regulation are available on CARB's Rulemaking Activity page.
The Proposed In-Use Locomotive Regulation was presented to the Board on November 18, 2022. Information is included on the Meetings & Workshops page. The 15-day changes are posted to the Rulemaking Page. At the second Board Hearing, which is planned for Spring of 2023, the Board will vote on the Proposed Regulation.
CARB has posted fact sheets that describe different kinds of locomotive operations, as well as the effects of locomotive emissions on communities near locomotive operations and on the state. The fact sheets also contain information about the Proposed In-Use Locomotive Regulation and its applicability to each locomotive operator.
Comparison of Truck and Train Emissions
CARB Locomotive Petition to U.S. EPA
CARB Agreements with Class 1 Railroads