49 CFR § 178.338 Specifications for Packagings§ 178.338 Specification MC-338; insulated cargo tank motor vehicle.Current through Sep 25, 2026 · Read all of Part 178⚠ 4 pending changes to Part 178Hazardous 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 Using Highly Automated Transportation SystemsProposed Rule · Transportation DepartmentHazardous Materials: Harmonization With International StandardsProposed Rule · Transportation DepartmentHazardous Materials: Modernizing Regulations To Facilitate Transportation of Hazardous Materials Integral to Spacecraft Components and PayloadsProposed Rule · Transportation Department