This information is provided free of charge by the Department of Industrial Relations from its web site at These regulations are for the convenience of the user and no representation or warranty is made that the information is current or accurate. See full disclaimer at

Subchapter 18. Ship Building, Ship Repairing and Ship Breaking Safety Orders
Article 6. Precautions

Return to index
New query

§8391.4. Electric Circuits and Distribution Boards.

(a) The provisions of this section shall apply to ship repairing and shipbuilding and shall not apply to ship breaking.

(b) Before an employee is permitted to work on an electrical circuit, except when the circuit must remain energized for testing and adjusting, the circuit shall be de-energized and checked at the point at which the work is to be done to insure that it is actually de-energized.

(1) When testing or adjusting an energized circuit a rubber mat, duck board, or other suitable insulation shall be used underfoot where an insulated deck does not exist.

(c) De-energizing the circuit shall be accomplished by opening the circuit breaker, opening the switch, or removing the fuse, whichever method is appropriate. The circuit breaker, switch, or fuse location shall then be locked out or tagged in accordance with Section 8356.

(d) When work is performed immediately adjacent to an open-front energized board or in back of an energized board, the board shall be covered or some other equally safe means shall be used to prevent contact with any of the energized parts.

Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.


1. New section filed 12-13-2011; operative 12-13-2011. Submitted to OAL for printing only pursuant to Labor Code section 142.3(a)(3) (Register 2011, No. 50).

Go BackGo Back to Ship Building, Ship Repairing and Ship Breaking Safety Orders, Article 6 Table of Contents