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PDFWAC 296-307-45540

Control ignition sources.

(1) The employer must make sure the vapor areas and adjacent areas do not have any:
(a) Open flames;
(b) Spark producing devices;
(c) Heated surfaces hot enough to ignite vapors.
(2) The employer must use explosion-proof wiring and equipment in the vapor area.
Reference:
Electrical wiring and equipment has to meet the requirements of the applicable hazardous (classified) location. See Hazardous (classified) locations, WAC 296-307-37209.
(3) The employer must prohibit smoking in any vapor area: Post an easily seen "NO SMOKING" sign near each dip tank.
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 20-21-091, § 296-307-45540, filed 10/20/20, effective 11/20/20. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 03-10-068, § 296-307-45540, filed 5/6/03, effective 8/1/03.]
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