In general, Seattle’s Standard Specifications contain baseline requirements addressing Safety Rules and Standards, Protection and Restoration of Property, Public Convenience and Safety, Notifications Required of Contractor Activities, Temporary Traffic Control (see Standard Specifications 1-07.1(2), 1-07.16, 1-07.23, 1-07.28, and 1-10), and other General Requirements that may apply to a specific construction. These Standard Specifications may be amended by permit, by the Seattle City Council, or other legal authority for a site or project specific application.

Chapter 49.17 RCW Washington Industrial Safety and Health Act addresses the responsibilities of the employer to ensure safe working conditions. Washington Administrative Code (WAC) Title 296 addresses the responsibilities of the Washington State Department of Labor and Industries as it relates to safe working conditions. WAC Chapter 296-155  addresses most, but not all, construction safety elements typical of construction in the street right-of-way.

Other entities, including regulatory entities, may have additional requirements for safe and accessible work sites. The project applicant shall become familiar with working clearances and other safety requirements as applicable.