{"operation":"document","citation":"49 CFR 179.202-6","title":"-6 Thermal protection system.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"The DOT Specification 117 tank car must have a thermal protection system. The thermal protection system must:\n\n(a) Conform to § 179.18 of this part;\n\n(b) Be equipped with a thermal protection blanket with at least 1/2-inch-thick material that meets § 179.18(c) of this part; and\n\n(c) Include a reclos","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-179-202-6.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-179-202-6.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-179-202-6","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-179.202-6","body":"The DOT Specification 117 tank car must have a thermal protection system. The thermal protection system must:\n\n(a) Conform to § 179.18 of this part;\n\n(b) Be equipped with a thermal protection blanket with at least 1/2-inch-thick material that meets § 179.18(c) of this part; and\n\n(c) Include a reclosing pressure relief device in accordance with § 173.31 of this subchapter.\n\n[81 FR 53957, Aug. 15, 2016]","truncated":false,"body_characters":404}