[Federal Register Volume 68, Number 87 (Tuesday, May 6, 2003)]
[Rules and Regulations]
[Pages 23892-23893]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 03-55513]


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DEPARTMENT OF LABOR

Mine Safety and Health Administration

30 CFR Part 36


Approval Requirements for Permissible Diesel-Powered 
Transportation Equipment

CFR Correction

    In Title 30 of the Code of Federal Regulations, parts 1 to 199, 
revised as of July 1, 2002, the duplicated text from page 174 is 
removed and the following text is reinstated:
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operator and protected by position from external damage. Liquid carbon 
dioxide extinguishers shall contain an active charge of not less than 4 
pounds. Pressurized dry chemical extinguishers shall contain an active 
charge of not less than 2\1/2\ pounds.


Sec.  36.32  Electrical components and systems.

    (a) Electrical components on mobile diesel-powered transportation 
equipment shall be certified or approved under Part 18, 20 or 27 of 
this chapter, as applicable, and shall bear the certification number 
assigned by MSHA.
    (b) Electrical systems on mobile diesel-powered transportation 
equipment shall meet the requirements of Part 18 or 27 of this chapter, 
as applicable.

[47 FR 11372, Mar. 16, 1982]


Sec.  36.33  Headlights and fixtures.

    (a) Headlights and lighting fixtures on mobile diesel-powered 
transportation equipment shall be protected from external damage by 
recessing them in the equipment frame, enclosing them within a shield 
of substantial construction, or by any other method that provides 
equivalent protection.
    (b) Mobile diesel-powered transportation equipment shall be 
equipped with at least one headlight on each end.

[47 FR 11372, Mar. 16, 1982]

Subpart C--Test Requirements


Sec.  36.40  Test site.

    Tests shall be conducted at MSHA's Diesel Testing Laboratory or 
other appropriate place(s) determined by MSHA.

[39 FR 24006, June 28, 1974, as amended at 43 FR 12318, Mar. 24, 
1978]


Sec.  36.41  Testing methods.

    Mobile diesel-powered transportation equipment submitted for 
certification and approval shall be tested to determine its combustion, 
explosion-proof, and other safety characteristics. MSHA shall prescribe 
the tests and reserves the right to modify the procedure(s) to attain 
these objectives (see Sec.  36.20).


Sec.  36.42  Inspection.

    A detailed inspection shall be made of the equipment and all 
components and features related to safety in operation. The inspection 
shall include:
    (a) Investigating the materials, workmanship, and design to 
determine their adequacy.
    (b) Checking the parts and assemblies against the drawings and 
specifications with respect to materials, dimensions, and locations to 
verify their conformance.
    (c) Inspecting and measuring joints, flanges, and other possible 
flame paths in the intake and exhaust systems to determine whether they 
will prevent the issuance of flame or propagation of an internal 
explosion.
    (d) Inspecting and measuring flame arresters to determine whether 
they will prevent the issuance of flame or propagation of an internal 
explosion.


Sec.  36.43  Determination of exhaust-gas composition.

    (a) Samples shall be taken to determine the composition of the 
exhaust gas while the engine is operated at loads and speeds prescribed 
by MSHA to determine the volume of air (ventilation) required to dilute 
the exhaust gas (see Sec.  36.45). The engine

[[Page 23893]]

shall be at temperature equilibrium before exhaust-gas samples are 
collected or other test data are observed. At all test conditions the 
intake mixture shall contain 1.5+/-0.1 percent, by volume, 
of Pittsburgh natural gas (see footnote 3) in the air. Test 
observations shall include the rate of fuel consumption, pressures, 
temperatures, and other data significant in the safe operation of 
diesel equipment.
    (b) Exhaust-gas samples shall be analyzed for carbon dioxide, 
oxygen, carbon monoxide, hydrogen, methane, nitrogen, oxides of 
nitrogen, and aldehydes, or any other constituent prescribed by MSHA.
    (c) The intake and exhaust systems shall be complete with all 
component equipment such as air cleaners, flame arresters, and exhaust 
cooling systems.
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[FR Doc. 03-55513 Filed 5-5-03; 8:45 am]
BILLING CODE 1505-01-D