What building codes are currently listed for Washington?
The current dataset contains 11 active adoption records for Washington. The code identifiers represented are IBC, IEBC, IECC, IFC, IFGC, IMC, IRC, IWUIC, NFPA 70, UPC.
Washington Building Codes & State Adoption Profile
Review 11 current statewide building code adoption records for Washington, including model-code editions, effective dates, amendments, and official references.
Always verify statewide requirements, local amendments, and the applicable enforcement date with the authority having jurisdiction before relying on a code selection.
Current Washington adoption records
| Adopted code | Base model code | Publisher | Effective | Adoption type | Reference |
|---|---|---|---|---|---|
| Washington State Electrical Code | 2023 NFPA 70 National Electrical Code (NFPA 70) | NFPA | Apr 1, 2024 | Amended | Official source |
| Washington State Mechanical Code | 2021 International Mechanical Code (IMC) | ICC | Mar 15, 2024 | Custom | Official source |
| Washington State Energy Code - Residential Provisions | 2021 International Energy Conservation Code (IECC) | ICC | Mar 15, 2024 | Custom | Official source |
| Washington State Existing Building Code | 2021 International Existing Building Code (IEBC) | ICC | Mar 15, 2024 | Custom | Official source |
| Washington State Plumbing Code | 2021 Uniform Plumbing Code (UPC) | IAPMO | Mar 15, 2024 | Custom | Official source |
| Washington State Energy Code - Commercial Provisions | 2021 International Energy Conservation Code (IECC) | ICC | Mar 15, 2024 | Custom | Official source |
| Washington State Fuel Gas Code | 2021 International Fuel Gas Code (IFGC) | ICC | Mar 15, 2024 | Custom | Official source |
| Washington State Residential Code | 2021 International Residential Code (IRC) | ICC | Mar 15, 2024 | Custom | Official source |
| Washington State Fire Code | 2021 International Fire Code (IFC) | ICC | Mar 15, 2024 | Custom | Official source |
| Washington Wildland-Urban Interface Code | 2021 International Wildland-Urban Interface Code (IWUIC) | ICC | Mar 15, 2024 | Custom | Official source |
| Washington State Building Code | 2021 International Building Code (IBC) | ICC | Mar 15, 2024 | Custom | Official source |
Washington building code questions
Does Washington amend its adopted model building codes?
The adoption records use these amendment classifications: Amended, Custom. Local amendments may still apply even when a statewide record is present.
How do I confirm the code for a project in Washington?
Use the listed adoption references as a starting point, then confirm the edition, effective date, local amendments, occupancy, and project scope with the authority having jurisdiction in Washington.
Are these Washington records legal advice?
No. MeltPlan provides research information and source links. The enforcing agency and adopted legal text control.