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(a) Underground pipe and tubing and outdoor ferrous pipe and tubing shall be covered or painted with a suitable material for protection against corrosion.
(b) All oxygen pipe lines shall be painted one color, preferably green, and all fuel gas pipes a different color. Where more than one fuel gas is employed, the pipe lines supplying the different gases shall be painted distinctive colors.
(c) A color chart indicating the colors employed for this purpose shall be prominently displayed.
(d) Signs clearly establishing the location and identity of section shut-off valves shall be provided.
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
1. Amendment filed 6-12-87; operative 7-12-87 (Register 87, No. 26).