You must:
• Illuminate each exit route adequately and reliably.
• Have at least five foot-candles illumination from a reliable light source.
• Make sure any exit signs illuminated by artificial lights and made of translucent material (other than internally illuminated types)
– Have screens, discs or lens of at least twenty-five square inches in size; and
– Show red or other designated color on the approach side of the exit.
• Make sure brightly lit signs, displays, or objects in or near the line of vision do not distract attention from the exit sign.
• Make sure exit signs that are self-lighting have a minimum luminance surface value of .06 footlamberts.
[Statutory Authority: RCW 49.17.010, [49.17].040, and[49.17].050 . 01-11-038, § 296-800-31053, filed 5/9/01, effective 9/1/01.]