{"data":{"id":"us/49-cfr-179.220-14","jurisdiction":"us","citation":"49 CFR 179.220-14","heading":"-14 Openings in the tanks.","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.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—HAZARDOUS MATERIALS REGULATIONS","PART 179—SPECIFICATIONS FOR TANK CARS","Subpart D—Specifications for Non-Pressure Tank Car Tanks (Classes DOT-111AW, 115AW, and 117AW)"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"3bf6db0398234a0f8b70fc4a9c225b2d886b52b989912920daaaad103743c42a","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-179.220-13","next":"us/49-cfr-179.220-15"},"notice":"GroundRules: Original legal text. Not legal advice."}