{"operation":"document","citation":"49 CFR 179.202-5","title":"-5 Tank head puncture resistance 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-117 specification tank car must have a tank head puncture resistance system in conformance with § 179.16(c). The full height head shields must have a minimum thickness of 1/2 inch.\n\n[80 FR 26749, May 8, 2015]","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-179-202-5.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-179-202-5.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-179-202-5","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-179.202-5","body":"The DOT-117 specification tank car must have a tank head puncture resistance system in conformance with § 179.16(c). The full height head shields must have a minimum thickness of 1/2 inch.\n\n[80 FR 26749, May 8, 2015]","truncated":false,"body_characters":216}