49 C.F.R. § 179.221 Individual specification requirements applicable to tank car tanks consisting of an inner container supported within an outer shell.
Title 49 - Transportation
Title 49: Transportation
PART 179—SPECIFICATIONS FOR TANK CARS
Subpart D—Specifications for Non-Pressure Tank Car Tanks (Classes DOT-111AW and 115AW)
§ 179.221 Individual specification requirements applicable to tank car tanks consisting of an inner container supported within an outer shell.