§18.14. Identification of tested noncertified explosion-proof enclosures.
30 C.F.R. § 18.14
An enclosure that meets all applicable requirements of this part, but has not been certified by MSHA, shall be identified by a permanent marking on it in a conspicuous location. The design of such marking shall consist of capital letters USMSHA not less than 1/4 inch in height, enclosed in a circle not less than 1 inch in diameter.
Notes, amendments, and revision history
Amendments
[33 FR 4660, Mar. 19, 1968, as amended at 43 FR 12314, Mar. 24, 1978]
Authority
Authority: 30 U.S.C. 957, 961.
Source
Source: 33 FR 4660, Mar. 19, 1968, unless otherwise noted.
Amendments
[33 FR 4660, Mar. 19, 1968, as amended at 43 FR 12314, Mar. 24, 1978]