30 C.F.R. § 7.404
Technical requirements
(a) Electric cables and splices shall be flame resistant when tested in accordance with § 7.407.
(b) Signaling cables shall be flame resistant when tested in accordance with § 7.408.
(a) Electric cables and splices shall be flame resistant when tested in accordance with § 7.407.
(b) Signaling cables shall be flame resistant when tested in accordance with § 7.408.