CFR /  Title 30  /  Part 14  /  Sec. 14.20 Flame resistance.

Conveyor belts for use in underground coal mines must be flame-resistant and:

(a) Tested in accordance with Sec. 14.22 of this part; or

(b) Tested in accordance with an alternate test determined by MSHA to be equivalent under 30 CFR Sec. Sec. 6.20 and 14.4(e).