Rule2026-17788
Expanding Certain Locomotive Wheel Set Diameter Variations
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
August 31, 2026
Effective
September 30, 2026
Issuing agencies
Transportation DepartmentFederal Railroad Administration
Abstract
This rule amends FRA's locomotive safety regulations to expand the maximum permitted variation in diameter for locomotive wheel sets using alternating current technology, in response to a Class I railroad's May 2019 petition for rulemaking and innovations in traction motor control.
Indexed from Federal Register on August 31, 2026.
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