49 CFR § 179.202 Specifications for Tank Cars§ 179.202 Individual specification requirements applicable to DOT-117 tank car tanks.Current through Sep 25, 2026 · Read all of Part 179⚠ 2 pending changes to Part 179Hazardous Materials: Incorporation of ASME Code Section XII and the National Board Inspection CodeRule · takes effect Oct 28, 2026 · Transportation DepartmentHazardous Materials: Modernizing Regulations To Facilitate Transportation of Hazardous Materials Integral to Spacecraft Components and PayloadsProposed Rule · Transportation Department