WAC 296-800-31040. Provide outdoor exit routes that meet these requirements

You must make sure an outdoor exit route (such as an interior balcony, porch, gallery, or roof) meets all requirements for an indoor exit route. In addition, an outdoor exit route must also: (1) Have guardrails to protect unenclosed sides. (2) Be covered if snow or ice is likely to accumulate without regular removal. (3) Be reasonably straight with smooth, solid, substantially level floors. (4) Have no dead ends more than twenty feet long that branch off of the exit route.