Statutes, codes, and regulations
Code of Federal Regulations
Title 30 - MINERAL RESOURCESChapter I - MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABORSubchapter K - METAL AND NONMETAL MINE SAFETY AND HEALTHPart 57 - SAFETY AND HEALTH STANDARDS-UNDERGROUND METAL AND NONMETAL MINESSubpart D - AIR QUALITY, RADIATION, PHYSICAL AGENTS, AND DIESEL PARTICULATE MATTER
DIESEL PARTICULATE MATTER-UNDERGROUND ONLY
Section 57.5067 - Engines

30 C.F.R. § 57.5067

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Current through October 31, 2024
Section 57.5067 - Engines
(a) Any diesel engine introduced into an underground area of a mine covered by this part after July 5, 2001, other than an engine in an ambulance or fire fighting equipment which is utilized in accordance with mine fire fighting and evacuation plans, must either:
(1) Have affixed a plate evidencing approval of the engine pursuant to subpart E of Part 7 of this title or pursuant to Part 36 of this title; or
(2) Meet or exceed the applicable particulate matter emission requirements of the Environmental Protection Administration listed in Table 57.5067-1, as follows:

Table 57.5067-1

EPA requirementEPA categoryPM limit
40 CFR 86.094-8(a)(1)(i)(A)(2) light duty vehicle0.1 g/mile.
40 CFR 86.094-9(a)(1)(i)(A)(2) light duty truck0.1 g/mile.
40 CFR 86.094-11(a)(1)(iv)(B) heavy duty highway engine0.1 g/bhp-hr.
40 CFR 89.112(a) nonroad (tier, power range)varies by power range:
tier 1 kW[LESS THAN]8 (hp[LESS THAN]11)1.0 g/kW-hr (0.75 g/bhp-hr).
tier 1 8[LESS THAN EQUAL TO]kW[LESS THAN]19 (11[LESS THAN EQUAL TO]hp[LESS THAN]25)0.80 g/kW-hr (0.60 g/bhp-hr).
tier 1 19[LESS THAN EQUAL TO]kW[LESS THAN]37 (25[LESS THAN EQUAL TO]hp[LESS THAN]50)0.80 g/kW-hr (0.60 g/bhp-hr).
tier 2 37[LESS THAN EQUAL TO]kW[LESS THAN]75 (50[LESS THAN EQUAL TO]hp[LESS THAN]100)0.40 g/kW-hr (0.30 g/bhp-hr).
tier 2 75[LESS THAN EQUAL TO]kW[LESS THAN]130 (100[LESS THAN EQUAL TO]hp[LESS THAN]175)0.30 g/kW-hr (0.22 g/bhp-hr).
tier 1 130[LESS THAN EQUAL TO]kW[LESS THAN]225 (175[LESS THAN EQUAL TO]hp[LESS THAN]300)0.54 g/kW-hr (0.40 g/bhp-hr).
tier 1 225[LESS THAN EQUAL TO]kW[LESS THAN]450 (300[LESS THAN EQUAL TO]hp[LESS THAN]600)0.54 g/kW-hr (0.40 g/bhp-hr).
tier 1 450[LESS THAN EQUAL TO]kW[LESS THAN]560 (600[LESS THAN EQUAL TO]hp[LESS THAN]750)0.54 g/kW-hr (0.40 g/bhp-hr).
tier 1 kW[GREATER THAN EQUAL TO]560 (hp[GREATER THAN EQUAL TO]750)0.54 g/kW-hr (0.40 g/bhp-hr).

NOTES:

"g" means grams.

"hp" means horsepower.

"g/bhp-hr" means grams/brake horsepower-hour.

"kW" means kilowatt.

"g/kW-hr" means grams/kilowatt-hour.

(b) For purposes of paragraph (a):
(1) The term "introduced" means any engine added to the underground inventory of engines of the mine in question, including:
(i) An engine in newly purchased equipment;
(ii) An engine in used equipment brought into the mine; and
(iii) A replacement engine that has a different serial number than the engine it is replacing; but
(2) The term "introduced" does not include engines that were previously part of the mine inventory and rebuilt.
(3) The term introduced does not include the transfer of engines or equipment from the inventory of one underground mine to another underground mine operated by the same mine operator.

30 C.F.R. §57.5067

66 FR 5907 , Jan. 19, 2001, as amended at 66 FR 27864 , May 21, 2001; 67 FR 9184 , Feb. 27, 2002