30 CFR § 75.1907
Diesel-powered equipment intended for use in underground
(a) As of November 25, 1996 all diesel-powered equipment used where
permissible electrical equipment is required must be approved under
part 36 of this chapter.
(b) Diesel-powered equipment approved under part 36 of this chapter
must be provided with additional safety features in accordance with the
following time schedule:
(1) As of April 25, 1997 the equipment must have a safety component
system that limits surface temperatures to those specified in subpart F
of part 7 of this title;
(2) As of November 25, 1999 the equipment must have an automatic or
manual fire suppression system that meets the requirements of
of this part, and at least one portable multipurpose dry chemical type (ABC) fire extinguisher, listed or approved by a
nationally recognized independent testing laboratory and having a
10A:60B:C or higher rating. The fire extinguisher must be located
within easy reach of the equipment operator and be protected from
damage by collision.
(3) As of November 25, 1999 the equipment must have a brake system
that meets the requirements of § 75.1909
(b)(6), (b)(7), (b)(8),
(c), (d), and (e);
(4) As of November 25, 1997 a particulate index and dilution air
quantity shall be determined for the equipment in accordance with
subpart E of part 7 of this chapter; and
(5) Permissible diesel-powered equipment manufactured on or after
November 25, 1999 and that is used in an underground coal mine shall
incorporate a power package approved in accordance with part 7, subpart
F of this chapter.
(c) As of November 25, 1999 nonpermissible diesel-powered
equipment, except the special category of equipment under
(d), shall meet the requirements of Secs. 75.1909
of this part.