PART 20--ELECTRIC MINE LAMPS OTHER THAN STANDARD CAP LAMPS
Section
20.0 Compliance with the requirements necessary for obtaining approval.
20.1 Purpose.
20.2 Definitions.
20.3 Applications.
20.4 [Reserved]
20.5 Conditions governing investigations.
20.6 General requirements.
20.7 Specific requirements.
20.8 Class 1 lamps.
20.9 Class 2 lamps.
20.10 Tests (class 1 and 2 lamps).
20.11 Material required for MSHA records.
20.12 How approvals are granted.
20.13 Approval plate.
20.14 Instructions for handling future changes in lamp design.
Authority: 30 U.S.C. 957 , 961 .
Source: Schedule 10C, May 17, 1938, as amended at 5 FR 3467, Aug. 30, 1940,
unless otherwise noted.