Piping Systems
Rules
Rules for Specific Activities or Workplaces
- Agriculture (WAC 296-307-480)
- Anhydrous Ammonia (WAC 296-826-400)
Concrete, Concrete Forms, Shoring, and Masonry Construction (WAC 296-155 Part O)- Digester Valves, Pulp, Paper, and Paperboard Mills and Converters (WAC 296-79-29001)
- Diptanks, Constructing (WAC 296-835-12005)
- Diptanks, Flow Coating (WAC 296-835-13015)
- Installation, inspection & maintenance, Pulp, Paper, and Paperboard Mills and Converters (WAC 296-79-140)
- Installation, inspection, and maintenance of pipes, piping systems, and hoses, Ski Area Facilities and Operations (WAC 296-59-080)
- Lockout Requirements, Ski Area Facilities and Operations (WAC 296-59055(10))
- Lockout/Tagout (WAC 296-803-100)
- Sawmills and Woodworking Operations (Chapter 296-78 WAC)
- Shipbuilding, Ship Repairing and Shipbreaking (WAC 296-304-10003)
- Textile Industry (WAC 296-301-065)
- Welding, Cutting and Brazing, Mechanical Systems (WAC 296-24-72003)
- Welding, Cutting and Brazing, Service Piping Systems (WAC 296-24-68207)
Policies
- Asbestos Project Notification (WRD 23.25)
Other Resources
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Important:
"Links" to other information sources are provided as a courtesy, but we cannot vouch for or take responsibility for information contained beyond files administered by the Washington State Department of Labor and Industries. Links from this page do not represent or imply the endorsement of commercial products by the State of Washington, Labor and Industries, or by departmental staff. For more information, read L&I's Intended Usage policy.
- Confined Space Entry Programs, Example
- Emergency Washing Workshop
- Hospitals: Solutions to Common Safety and Health Violations -- Helping Washington Hospitals With L&I Audits and Inspections
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