- (1) Employers must make sure there are a minimum of two opposing guide rails extending to a point six inches beyond the full height of travel of the car when the counterweight buffer is fully compressed.
- (2) Employers must make sure all rails are attached by bolts, lag screws or other approved methods to a vertical supporting member which does not exceed one-half inch deflection with the application of a 250 pound horizontal thrust at any point.
- (3) Employers must make sure wood guide rails are at least one and one-half inch by one and one-half inch vertical grain fir or equivalent and must not vary more than three-sixteenth inch in thickness on the sides which the brakes contact. All joints must be kept smooth and even.
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060, 70.54.480, and chapter 49.17 RCW. WSR 26-07-053, s 296-56-60189, filed 3/17/26, effective 4/20/26. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-56-60189, filed 12/1/15, effective 1/5/16. Statutory Authority: RCW 49.17.040 and 49.17.050. WSR 86-03-064 (Order 86-02), § 296-56-60189, filed 1/17/86; WSR 85-01-022 (Order 84-24), § 296-56-60189, filed 12/11/84.]