Section 296-874-20022. Make sure portable, hook-on, and attachable ladders meet these requirements.  


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  • (1) You must position portable, hook-on, and attachable ladders so they do not tip the scaffold.
    (2) You must make sure hook-on and attachable ladders meet all of the following:
    (a) Specifically designed and used for that type of scaffold;
    (b) Have rungs that are:
    (i) Uniformly spaced;
    (ii) Not more than sixteen and three-quarters inches apart;
    (iii) At least eleven and one-half inches (29 cm) long;
    (iv) Lined up vertically between rest platforms.
    (3) You must position the bottom rung not more than twenty-four inches (61 cm) above the scaffold supporting level.
    (4) You must have rest platforms at vertical intervals not greater than twenty-four feet (7.3 m) on supported scaffolds.
    [Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050. WSR 15-23-086, § 296-874-20022, filed 11/17/15, effective 12/18/15. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 05-01-054, § 296-874-20022, filed 12/7/04, effective 3/1/05.]
RCW 49.17.010, 49.17.040, 49.17.050. WSR 15-23-086, § 296-874-20022, filed 11/17/15, effective 12/18/15. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 05-01-054, § 296-874-20022, filed 12/7/04, effective 3/1/05.