179.202-6 Thermal protection system.§ 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.[81 FR 53957, Aug. 15, 2016]