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Federal regulations · Through 2026-08-25 · Newer source version available

49 CFR 179.220-3: -3 Type.

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Where this section sits in the code
  1. Title 49—Transportation
  2. Subtitle B—Other Regulations Relating to Transportation
  3. CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
  4. SUBCHAPTER C—HAZARDOUS MATERIALS REGULATIONS
  5. PART 179—SPECIFICATIONS FOR TANK CARS
  6. Subpart D—Specifications for Non-Pressure Tank Car Tanks (Classes DOT-111AW, 115AW, and 117AW)

(a) Tanks built under these specifications must consist of an inner container, a support system for the inner container, and an outer shell.

(b) The inner container must be a fusion welded tank of circular cross section with formed heads designed convex outward and must have a manway on top of the tank as prescribed herein. When the inner container is divided into compartments, each compartment must be considered a separate container.

(c) The outer shell must be a fusion welded tank with formed heads designed convex outward.

Collected 2026-08-27T02:26:34Z. Source file · JSON

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