September 1, 2023. DEPARTMENT OF TRANSPORTATION

49 CFR Part 172

[Docket No. PHMSA–2021–0058 (HM–264A)] RIN 2137–AF55

Hazardous Materials: Suspension of HMR Amendments Authorizing Transportation of Liquefied Natural Gas by Rail

ACTION: Final rule.

SUMMARY: PHMSA, in coordination with the Federal Railroad Administration (FRA), is amending the Hazardous Materials Regulations to suspend authorization of liquefied natural gas (LNG) transportation in rail tank cars pursuant to a final rule published on July 24, 2020, pending the earlier of either completion of a companion rulemaking evaluating potential modifications to requirements governing rail tank car transportation of LNG, or June 30, 2025.

DATES: This final rule is effective on October 31, 2023.

Read More: https://www.govinfo.gov/content/pkg/FR-2023-09-01/pdf/2023-18569.pdf