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DOT-111 Ethanol Phase-Out Frequently Asked Questions (FAQs)

PHMSA issues responses to FAQs addressing questions about the upcoming phaseouts for transporting ethanol in DOT-111 tank cars. These FAQs will respond to questions and requests for guidance from railroads and tank car shippers on the upcoming May 1 and July 1 ethanol phaseout deadlines.

DOT is committed to ensuring that information is available in appropriate alternative formats to meet the requirements of persons who have a disability. If you require an alternative version of files provided on this page, please contact
Effective Date: Tuesday, April 25, 2023
Issued Date: Tuesday, April 25, 2023