{"operation":"document","citation":"49 CFR 179.220-14","title":"-14 Openings in the tanks.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"Openings in the inner container and the outer shell must be reinforced in compliance with AAR Specifications for Tank Cars, appendix E (IBR, see § 171.7 of this subchapter). In determining the required reinforcement area for openings in the outer shell, t shall be one-fourth inch.\n\n[68 FR 75763, Dec","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-179-220-14.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-179-220-14.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-179-220-14","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-179.220-14","body":"Openings in the inner container and the outer shell must be reinforced in compliance with AAR Specifications for Tank Cars, appendix E (IBR, see § 171.7 of this subchapter). In determining the required reinforcement area for openings in the outer shell, t shall be one-fourth inch.\n\n[68 FR 75763, Dec. 31, 2003]","truncated":false,"body_characters":311}