Plumbing and gas piping code books and information

Code books can be purchased from Seattle Dept. of Planning and Development (20th floor Seattle Municipal Tower). There are also some other websites where you can find additional code related information and publications:

• Washington Association of Building Officials
  Code books and code information
  
  
• International Association of Plumbing and Mechanical Officials
  Code books and code information
  
  
• International Code Council
  Code books and code information
  
  
• Washington State Building Code Council
  State law regarding construction related codes
  
  
• Washington State Dept. of Labor and Industries
  Contractor registration and plumbing installer certification
  
  
• King County Parcel Viewer
  Find tax parcel numbers and addresses
  
  
• Seattle Planning and Development Services
  Seattle building and mechanical permits
  
  
• King County Dept. of Development and Environment Services (DDES)
  King County building and mechanical permits
  
  
• Seattle Side Sewer Cards
  Property sewer locations and connections
  
  
• Seattle Public Utilities
  Sewer and water utilities