(1)(a) Before work begins in the vicinity of vehicular or pedestrian traffic that may endanger employees, traffic control signs, devices, and barriers must be positioned and used according to the requirements of chapter
296-155 WAC, Part E.
(b) When flaggers are used, employers, responsible contractors and/or project owners must comply with the requirements of WAC
296-155-305.
(2) During hours of darkness, warning lights must be prominently displayed.
(3) Excavated areas must be protected with barricades.
[Statutory Authority: RCW
49.17.010, [49.17].040, and [49.17].050, 2000 c 239, and chapter
34.05 RCW. WSR 01-07-075, § 296-45-52530, filed 3/20/01, effective 4/20/01. Statutory Authority: RCW
49.17.010, [49.17].040, [49.17].050 and [49.17].060. WSR 98-07-009, § 296-45-52530, filed 3/6/98, effective 5/6/98.]