49 C.F.R. § 179.500-13 Fixtures.
Title 49 - Transportation
(a) Attachments, other than those mounted on tank covers or serving as threaded closures for the ends of the tank, are prohibited. (b) [Reserved]
Title 49: Transportation
PART 179—SPECIFICATIONS FOR TANK CARS
Subpart F—Specification for Cryogenic Liquid Tank Car Tanks and Seamless Steel Tanks (Classes DOT-113 and 107A)
§ 179.500-13 Fixtures.