Washington 2021 / Mason County building codes

What's in this group11 books

Local amendments & ordinances

The layer that trips people up. You can know the state requirement perfectly and still get a comment because Mason County changed it.

• Mason County Code of Ordinances

Model & state codes

• 2017 ANSI 117.1 Accessible and Usable Buildings and FacilitiesANSI 117.1
• 2021 Washington State Building CodeIBC
• 2021 Washington State Energy Code - Commercial ProvisionsWSEC-R
• 2021 Washington State Energy Code - Residential ProvisionsWSEC-C
• 2021 Washington State Existing Building CodeIEBC
• 2021 Washington State Fire CodeIFC
• 2021 Washington State Fuel Gas CodeIFGC
• 2021 Washington State Mechanical CodeIMC
• 2021 Washington State Residential CodeIRC
• 2021 Washington State Wildland-Urban Interface CodeIWUIC

Related code groups

Other editions for Mason County, and neighbouring jurisdictions on the same cycle.

• Washington 202110
• Washington 2021 / Port Orchard11
• Washington 201810
• Washington 2021 / Bellevue12
• Washington 2021 / Kirkland12
• Washington 2021 / Seattle11
• National 202115
• Alabama / Madison County 20219
• Hawaii 2021 / Maui9

Questions

Which codes does Mason County use?

Mason County is covered by 11 books in Ichi, on the 2021 cycle: ANSI 117.1, Mason County Code of Ordinances, IBC, WSEC-R, WSEC-C, IEBC, and 5 more. The full list is above.

Does Ichi include Mason County's local amendments?

Yes — 1 local book: Mason County Code of Ordinances. Amendments are loaded as first-class books, not footnotes on the model code, so an answer reflects what Mason County actually enforces.

How current is this code group?

Code groups are maintained in the Ichi platform and this page reflects that library directly. New books, editions and amendments are added on an ongoing basis, and jurisdictions can be added on request.

Can I read the full code text here?

This page lists coverage — which books, which edition, which amendments. The code text itself lives inside Ichi, where it's delivered under our licensing agreements with the ICC and other publishers, and where every answer links to the exact section it came from.