1. (1) You must make sure the width of the working platform is:

   1. (a) At least twenty-four inches (610 mm); and
   2. (b) Allows a minimum of a twelve-inch (305 mm) wide passage at or past any obstruction on the platform.
2. (2) You must make sure the platform has slip-resistant flooring.

3. (3) You must make sure any opening in the platform is either:

   1. (a) Small enough to prevent passage of life lines, cables, and other potential falling objects; or
   2. (b) Protected by material under the opening which prevents the passage of life lines, cables, and potential falling objects.
4. (4) You must make sure means are provided to store any cable suspended from above the platform to keep it from accumulating on the floor of the platform.
5. (5) You must make sure means are provided to secure all tools, water tanks, and other accessories to keep them from moving or accumulating on the floor of the platform.
6. (6) You must make sure flammable liquids are not carried on the working platform.
7. (7) You must make sure a type B-C portable fire extinguisher is provided and securely attached on all working platforms.

8. (8) You must make sure operating controls for vertical travel of the platform are:

   1. (a) Continuous-pressure type; and
   2. (b) Located on the platform.

9. (9) You must make sure the maximum rated speed of the platform is limited to:

   1. (a) Fifty feet per minute (0.3 ms) for single speed hoists; and
   2. (b) Seventy-five feet per minute (0.4 ms) for multispeed hoists.
10. (10) You must make sure access to and egress from a working platform, except for those that land directly on a safe surface, is provided by stairs, ladders, platforms or runways.

11. (11) You must make sure access gates are self-closing and self-latching.

    Reference:	Requirements for stairs, ladders, platforms and runways are found in other chapters:
    	1. Working Surfaces, Guarding Floors and Wall Openings, Ladders, Part J-1 in the General safety and health standards, chapter 296-24 WAC.
    	2. Scaffolds, chapter 296-874 WAC.
    	3. Ladders, portable and fixed, chapter 296-876 WAC.

12. (12) You must make sure a suspended platform's suspension system restricts the platform inboard to outboard roll around its longitudinal axis to not more than fifteen degrees from the horizontal when moving the live load from the inboard to the outboard side of the platform.

    Note:

    The roll limitation does not apply to supported equipment.

[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 17-01-119, § 296-870-70050, filed 12/20/16, effective 1/20/17. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050. WSR 15-23-086, § 296-870-70050, filed 11/17/15, effective 12/18/15. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 47.17.060. WSR 06-19-075, § 296-870-70050, filed 9/19/06, effective 1/1/07.]