Quick answer: Alaska’s State Fire Marshal regulations adopt the 2021 International Building Code (IBC), International Fire Code (IFC), International Existing Building Code (IEBC), International Mechanical Code (IMC), and International Fuel Gas Code (IFGC), with Alaska-specific amendments. These provisions became effective October 28, 2022.
However, Alaska does not apply one uniform statewide residential building code to every single-family home. Local governments may adopt additional or different code editions, and electrical, plumbing, and energy requirements have separate rules.
Start here: Official Alaska adopted fire and building regulations (PDF).
Alaska Adopted Building Codes in 2026
The table below identifies the main code editions published by Alaska’s responsible state agencies. State adoption does not necessarily mean every provision applies to every building or that municipalities use the same edition.
| Code or standard | State-adopted edition | Official authority |
|---|---|---|
| International Building Code (IBC) | 2021 | 13 AAC 50.020 |
| International Fire Code (IFC) | 2021 | 13 AAC 50.025 |
| International Existing Building Code (IEBC) | 2021 | 13 AAC 50.021 |
| International Mechanical Code (IMC) | 2021 | 13 AAC 50.023 |
| International Fuel Gas Code (IFGC) | 2021, as amended | 13 AAC 50.024 |
| National Electrical Code (NEC / NFPA 70) | 2020 | 8 AAC 70.025 |
| Uniform Plumbing Code (UPC) | 2018 | 8 AAC 63.010 |
| Alaska Building Energy Efficiency Standard (BEES) | 2018 IECC, ASHRAE 62.2-2016 and Alaska amendments | AHFC / 15 AAC 155.010 |
| International Residential Code (IRC) | No single statewide IRC adoption for all private homes | Local rules and applicable AHFC requirements |
Sources: Alaska Department of Public Safety, Department of Labor and Workforce Development, and Alaska Housing Finance Corporation. Local amendments and project-specific applicability must also be checked.
Important: Alaska’s 2021 IBC adoption includes state amendments and exclusions. It is not a blanket adoption of every IBC chapter or every code referenced by the IBC. For example, the state substitutes its separately adopted electrical and plumbing standards for certain model-code references.
Which Alaska Building Code Applies to Your Project?
The correct answer depends on the property’s location, building use, and the government agency responsible for reviewing the work.
Single-Family Homes and Small Residential Buildings
Detached one-, two-, and three-family dwellings are excluded from the State Fire Marshal’s IBC scope under the state’s adopted amendments. The State Fire Marshal also exempts residential housing of three units or fewer from its building plan-review requirement.
This does not automatically mean construction can proceed without permits, inspections, or building standards. Local residential codes, electrical and plumbing requirements, zoning, financing conditions, and other applicable laws may still apply.
Commercial and Larger Multifamily Buildings
Commercial buildings and other covered occupancies generally require fire and life safety plan review before regulated construction begins. The Alaska Division of Fire and Life Safety performs this review in state-administered areas, while certain jurisdictions handle their own plan reviews.
State Fire Marshal review concentrates on fire and life safety. It does not substitute for comprehensive structural review, ordinary zoning approval, or every accessibility requirement.
Existing Buildings and Renovations
The adopted 2021 IEBC is relevant to alterations, additions, repairs, and changes of occupancy in covered buildings. Requirements depend on the type of work and the building’s existing condition.
A change from an office to a restaurant, for example, may raise different occupancy, fire protection, mechanical, and egress issues than ordinary maintenance.
Alaska Building Codes by Location
Alaska municipalities can maintain their own building codes and permitting procedures. Always verify which government has authority over the physical property—not merely the mailing address.
| Location | What to check in 2026 |
|---|---|
| Anchorage | Municipal Title 23 and the 2024 building-code update adopted in 2026, including its transition provisions. |
| Juneau | City and Borough building-code adoptions, local amendments, and municipal plan-review procedures. |
| Fairbanks | City permitting and building requirements; confirm whether the property is inside city boundaries. |
| Mat-Su Borough | Applicable borough rules, state code provisions, and the appropriate fire-service-area review authority. |
| Kenai, Ketchikan, Kodiak, Palmer, Sitka, Soldotna and Seward | Local building and fire review responsibilities identified by the State Fire Marshal. |
| Other communities and unincorporated areas | Confirm state fire review applicability, local ordinances, and any separately regulated construction work. |
Important Anchorage Code Change in 2026
Anchorage adopted its 2024 building-code cycle in April 2026. According to the Municipality’s April 24, 2026 interim policy:
- The updated administrative code and specified fire-code provisions took effect May 18, 2026.
- The municipality allowed building permit applications under the previous code cycle through December 31, 2026.
- Beginning January 1, 2027, building permit applications must use the adopted 2024 building codes.
Read Anchorage’s official 2026 code-transition policy (PDF).
For other communities, use the Alaska Municipal Code Library to locate local ordinances. The state warns that online municipal-code copies may not be the legally controlling current text; confirm recent amendments with the municipality.
How to Check the Correct Code Before Building
Use these steps before purchasing plans, applying for a permit, or beginning construction.
-
Confirm the exact property jurisdiction.
Determine whether the parcel lies inside municipal boundaries or an unincorporated area. Use the relevant municipality or borough’s official property and planning resources. -
Identify the project and building occupancy.
Record whether the work involves a one-family home, duplex, triplex, larger multifamily building, commercial facility, addition, renovation, or change of use. -
Read the applicable state rules.
Open the Alaska Administrative Code, 13 AAC 50. Check the adopted model code, state amendments, exclusions, and plan-review provisions. -
Check municipal rules and separate standards.
Look up your municipality’s adopted edition and amendments. Verify electrical, plumbing, energy, zoning, floodplain, and other requirements relevant to the project. -
Confirm who issues approval.
Contact the local building department or State Fire Marshal’s Plan Review Bureau before submitting plans or starting regulated work.
Alaska-specific design reminder: Ask the appropriate building official or design professional about site-specific snow and wind loads, seismic design, ground conditions, permafrost, frost protection, drainage, and moisture control. Requirements can differ substantially between coastal, interior, and northern Alaska locations.
Building Permits and State Fire Marshal Plan Review
For projects requiring state-administered fire and life safety review, applications are submitted through the Alaska State Fire Marshal’s online Community Portal.
Alaska State Fire Marshal — Plan Review
Agency: Alaska Department of Public Safety, Division of Fire and Life Safety
Plan Review Bureau: (907) 269-2004
Email: dps.prb@alaska.gov
Application portal: State Fire Marshal Community Portal
For projects administered by the State Fire Marshal. Deferred jurisdictions handle applicable reviews locally.
How to Submit a State Plan-Review Application
- Open the official Community Portal.
- Create an account or sign in using the portal’s current instructions.
- Select the appropriate building plan-review application or service.
- Enter the project address, owner details, proposed use, construction description, and requested project information.
- Upload the required plans, specifications, and supporting documents.
- Submit the application and pay the assessed review fee following the portal’s instructions.
- Monitor the application for correction requests. Address identified deficiencies and retain the approval documentation before beginning regulated work.
Documents Commonly Required
The State Fire Marshal identifies the following information as relevant to its plan review:
- Building location and site information.
- Floor area, height, stories, and occupancy classification.
- Construction type and interior finish details.
- Exit arrangements and accessible routes.
- Mechanical and electrical information relevant to fire and life safety.
- Fuel-storage tank information, when applicable.
- Fire alarm and automatic fire-suppression system information, when applicable.
Additional engineered drawings or specialty documentation may be required according to the project and reviewing authority.
Plan Review Fees and Processing Time
| Item | Official guidance |
|---|---|
| State plan-review fee | Calculated according to applicable valuation and regulatory fee provisions; not one fixed amount for all projects. |
| Typical processing time | 2–4 weeks after full payment, according to the State Fire Marshal’s published guidance. |
| Correction requests | Applicants must resolve identified plan deficiencies before approval. |
| Starting without required approval | Can trigger an additional processing fee and other enforcement consequences. |
For a detailed fee explanation, use the official Plan Review Bureau page, which links directly to the state’s fee guidance and review assistance documents.
Remember: State fire and life safety approval is not necessarily the only approval your project needs. Local building permits, trade permits, inspections, and other agency approvals may still be required.
Alaska Residential Energy Code and BEES Requirements
The Alaska Housing Finance Corporation (AHFC) administers the Building Energy Efficiency Standard (BEES), which is particularly important for homes financed through qualifying Alaska Housing programs.
The published BEES requirements include:
- 2018 International Energy Conservation Code (IECC).
- ASHRAE 62.2-2016 ventilation standard.
- Alaska-specific amendments.
- A minimum 5 Star energy rating under the applicable AHFC standard.
- Required certification and inspection documentation.
For applicable AHFC-financed construction, energy compliance is generally documented using PUR-101 and PUR-102. An eligible certificate of occupancy from an AHFC-approved municipality may substitute for PUR-102. PUR-101 must be completed by an authorized AHFC energy rater.
View the official AHFC BEES requirements and compliance instructions.
Do not confuse financing standards with universal building-code adoption. BEES requirements associated with AHFC financing do not mean the 2018 IECC automatically applies as a universal statewide construction code to every privately financed home.
Official Alaska Building Code Resources
These primary government sources provide adopted regulations, application procedures, municipal information, and supporting documents.
- Alaska Fire Prevention Regulations — Official PDF 13 AAC 50–55, including adopted building and fire codes, Alaska amendments, plan review, and enforcement provisions.
- Alaska Administrative Code — State Legislature Official regulatory reference for checking adopted provisions and subsequent changes.
- State Fire Marshal Plan Review Bureau Application guidance, exemptions, forms, fees, processing information, and deferred jurisdictions.
- Alaska Mechanical Inspection — Department of Labor Electrical and plumbing code references, inspections, and mechanical inspection information.
- Alaska Housing Finance Corporation — Codes & Standards Residential construction, energy standards, Alaska amendments, and financing-related requirements.
- Alaska Municipal Code Library Municipal ordinance directories for researching locally adopted requirements.
- Anchorage 2026 Code Update Policy — Official PDF Adoption, effective dates, and the transition to Anchorage’s 2024 building-code cycle.
How to find a specific rule: Open the state regulations PDF and search for its section number, such as 13 AAC 50.020 for the IBC, 13 AAC 50.025 for the IFC, or 13 AAC 50.027 for state plan-review provisions. Read the adopted amendments together with the applicable model-code text.
Alaska Building Code FAQs
These answers address common questions from Alaska homeowners, builders, contractors, and property owners.
1. What building code does Alaska use in 2026?
Alaska’s State Fire Marshal regulations adopt the 2021 International Building Code with state amendments and defined scope limitations. The state also adopts related 2021 fire, existing-building, mechanical, and fuel-gas codes. Local jurisdictions may have different adopted code editions.
2. Has Alaska adopted the 2024 International Building Code statewide?
No statewide replacement of the 2021 State Fire Marshal IBC adoption with the 2024 edition was identified in the official regulations reviewed for this guide. Anchorage adopted a 2024 building-code cycle in 2026, with a transition period for building permit applications through December 31, 2026.
3. Does Alaska have a statewide residential building code?
Alaska does not impose one uniform statewide IRC adoption on every single-family home. Local residential codes, applicable trade regulations, zoning rules, and Alaska Housing financing requirements may still govern residential construction.
4. Do I need a building permit for a single-family home in Alaska?
That depends on the property’s jurisdiction and the work involved. Small residential buildings are generally exempt from State Fire Marshal building plan review, but local permits, electrical and plumbing approvals, and other requirements may still apply.
5. Which electrical and plumbing codes apply in Alaska?
Alaska’s published state minimum standards reference the 2020 National Electrical Code under 8 AAC 70.025 and the 2018 Uniform Plumbing Code under 8 AAC 63.010. Check the scope of those rules and any applicable local amendments before beginning work.
6. What energy code does Alaska use for AHFC-financed homes?
Alaska Housing’s BEES uses the 2018 International Energy Conservation Code, ASHRAE 62.2-2016, and Alaska-specific amendments. Applicable AHFC financing requires energy compliance documentation, generally involving PUR-101 and PUR-102 or an accepted municipal substitute.
7. Does a commercial building need State Fire Marshal approval?
Covered commercial construction generally requires fire and life safety plan review before work begins. In jurisdictions where authority has been deferred, the appropriate local agency administers the review instead. Structural and other permits may require separate approvals.
8. How long does Alaska State Fire Marshal plan review take?
The State Fire Marshal reports a typical processing period of two to four weeks after full payment is received. Incomplete documents, correction requests, or project complexity may affect the actual timeline.
9. How much does an Alaska building permit or plan review cost?
There is no single statewide fee for every building project. State plan-review charges depend on the applicable valuation and fee provisions, while municipalities may have separate permit and inspection fees. Request a project-specific estimate from the responsible authority.
10. Where can I find the building code for my Alaska city or borough?
Start with Alaska’s official Municipal Code Library, then verify the adopted code edition and amendments with the local building department. For state-administered fire and life safety requirements, use 13 AAC 50 and the State Fire Marshal’s official website.
Information checked: October 8, 2026.
This guide summarizes publicly available government regulations and procedures. The applicable code edition may depend on project location, application date, occupancy, and local amendments. Confirm requirements with the authority having jurisdiction before construction.
USBuilding.org is an independent informational website and is not affiliated with the Alaska Department of Public Safety or any government permitting agency.