30 CFR 57.5067 - Engines.

§ 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 requirement EPA category PM limit
40 CFR 86.094-8(a)(1)(i)(A)(2) light duty vehicle 0.1 g/mile.
40 CFR 86.094-9(a)(1)(i)(A)(2) light duty truck 0.1 g/mile.
40 CFR 86.094-11(a)(1)(iv)(B) heavy duty highway engine 0.1 g/bhp-hr.
40 CFR 89.112(a) nonroad (tier, power range) varies by power range:
tier 1 kW<8 (hp<11) 1.0 g/kW-hr (0.75 g/bhp-hr).
tier 1 8≤kW<19 (11≤hp<25) 0.80 g/kW-hr (0.60 g/bhp-hr).
tier 1 19≤kW<37 (25≤hp<50) 0.80 g/kW-hr (0.60 g/bhp-hr).
tier 2 37≤kW<75 (50≤hp<100) 0.40 g/kW-hr (0.30 g/bhp-hr).
tier 2 75≤kW<130 (100≤hp<175) 0.30 g/kW-hr (0.22 g/bhp-hr).
tier 1 130≤kW<225 (175≤hp<300) 0.54 g/kW-hr (0.40 g/bhp-hr).
tier 1 225≤kW<450 (300≤hp<600) 0.54 g/kW-hr (0.40 g/bhp-hr).
tier 1 450≤kW<560 (600≤hp<750) 0.54 g/kW-hr (0.40 g/bhp-hr).
tier 1 kW≥560 (hp≥750) 0.54 g/kW-hr (0.40 g/bhp-hr).


“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.

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

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

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United States Code

Title 30 published on 06-Jun-2018 04:01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 30 CFR Part 57 after this date.

  • 2018-04-19; vol. 83 # 76 - Thursday, April 19, 2018
    1. 83 FR 17293 - Examinations of Working Places in Metal and Nonmetal Mines
      GPO FDSys XML | Text
      DEPARTMENT OF LABOR, Mine Safety and Health Administration
      Announcement of public meetings.
      The meeting dates and locations are listed in the SUPPLEMENTARY INFORMATION section of this document.
      30 CFR Parts 56 and 57