Washington State Building Code
The Washington State Building Code is comprised of several different codes. Most are national model codes adopted by reference and amended at the state level. Others, such as the Washington State Energy Code, are state-written state-specific codes.
Only the state amendments and state-written codes are available on this website for viewing and download. For information on purchasing the base model codes or hard copies of the state amendments, see the Ordering Information page.
2003 International Building Code (Includes adoption of Appendix E and ICC/ANSI A117.1-1998 effective through 6/05 and ICC ANSI A117.1-2005 effective 7/1/05) Effective July 1, 2004
2003 International Residential Code ( Chapters 11 through 25 and 42 are not adopted) (Effective July 1, 2004)
2003 International Mechanical Code (Includes adoption of 2001 NFPA 58 & 2002 NFPA 54) (Effective July 1, 2004)
2003 International Fire Code (Effective July 1, 2004)
2003 Uniform Plumbing Code (Includes adoption of Appendices A, B and I) (Effective July 1, 2004)
2003 Washington State Energy Code RS 29 - Nonresidential Building Design by Systems Analysis (Effective July 1, 2004)
2003 Washington State Ventilation & Indoor Air Quality Code (Effective July 1, 2004)