View all text of Subpart D [§ 179.200 - § 179.221-1]
§ 179.202-6 - Thermal protection system.
The DOT Specification 117 tank car must have a thermal protection system. The thermal protection system must:
(a) Conform to § 179.18 of this part;
(b) Be equipped with a thermal protection blanket with at least 1/2-inch-thick material that meets § 179.18(c) of this part; and
(c) Include a reclosing pressure relief device in accordance with § 173.31 of this subchapter.