WAC 296-800-27010
WAC 296-800-27010. Make sure that floors are safe
(1) You must make sure that floors including their parts and structural members are safe.
(2) You must make sure floors are of substantial construction and kept in good repair. This includes floors of:
(a) Buildings.
(b) Platforms.
(c) Walks and driveways.
(d) Storage yards.
(e) Docks.
(3) You must make sure that structures are designed, constructed, and maintained to provide a safety factor of 4 times the imposed maximum strain.
(4) If you notice bowing, cracking, or other indications of excessive strain on a structure, you must take action to make sure it is safe.
Note:
This rule applies to all buildings that were built or those that have had complete or major changes or repairs done after 5/7/74.