US lawFederal (United States)RegulationsTitle 49 CFR — TransportationChapter I — PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATIONPart 179 — SPECIFICATIONS FOR TANK CARSSubpart D — Specifications for Non-Pressure Tank Car Tanks (Classes DOT-111AW, 115AW, and 117AW)179.202-149 C.F.R. § 179.202-1Applicability.Last amended: 2016Year: 2026Length: 38 wordsOfficial source Cite as 49 C.F.R. § 179.202-1 (2026)Each tank built under these specifications must conform to the general requirements of § 179.200 and the prescriptive standards in §§ 179.202-1 through 179.202-11, or the performance standard requirements of § 179.202-12. [80 FR 26749, May 8, 2015]Cross-references to the CFR179.200179.202-1179.202-12.Previous49 C.F.R. § 179.201-11Next49 C.F.R. § 179.202-3