Regional Jurisdiction Hub: Washington
Fire Protection Engineering in Washington
PE-Stamped Submittals for Washington Building Departments and Fire Marshals, from Seattle to Spokane
Washington adopts the International Building Code and International Fire Code statewide, with state amendments, and cities and counties enforce them through their building departments and fire marshals. DGA Fire Protection Engineering prepares PE-stamped sprinkler, fire alarm, and life safety submittals for that local review, from Seattle, Tacoma and the Puget Sound region to Spokane and eastern Washington. Owners, architects and contractors hire DGA as their fire protection consultant and engineering firm for fire sprinkler design, fire alarm design, and fire and life safety code reviews across Washington, with a licensed PE on every file.
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Washington Review Pathway
City or County Fire MarshalSprinkler, fire alarm, and fire code review under the International Fire Code as amended by Washington.
City of SeattleInside the city, the Seattle Fire Department reviews fire protection systems and the Seattle Department of Construction and Inspections issues building permits.
Building PermitsCity and county building departments issue building permits under the International Building Code as amended by Washington.
What DGA Does in Washington
Fire Protection Engineering for Washington Review
Washington sets one building code and one fire code for the whole state through the State Building Code Council: the International Building Code and International Fire Code with Washington amendments (WAC 51-50 and WAC 51-54A). Cities and counties enforce them, so the fire marshal and the building department that review a project depend on where it is.
DGA confirms which offices review the project at kick-off and prepares one set of PE-stamped documents that answers each of them.
Fire Marshal Plan Review
Sprinkler, fire alarm, and life safety documents prepared for review under the International Fire Code as amended by Washington.
Seattle and Puget Sound Projects
Fire protection engineering for high-rise, mixed-use, laboratory, and residential buildings in Seattle, Bellevue, Tacoma, and Everett.
Warehouses and Distribution Centers
ESFR and in-rack sprinkler design, high-piled storage analysis, and commodity classification for logistics buildings in the Kent Valley and along the I-5 corridor.
Sprinkler and Fire Alarm Design
NFPA 13 sprinkler and NFPA 72 fire alarm design to the editions Washington’s adopted codes reference, with hydraulic calculations and flow test analysis.
Life Safety and Code Analysis
Occupancy classification, construction type, egress capacity, and fire protection requirements under the Washington-amended International Building Code.
Existing Buildings and Changes of Use
Code paths for renovations, additions, and changes of use, including alternate methods requests when the prescriptive requirement does not fit the building.
AHJ Authority & Code Framework
Who Reviews Fire Protection in Washington
| Jurisdiction / Authority | Governing Code Framework | Typical Review Scope |
|---|---|---|
| City and County Fire Marshals (including the Seattle Fire Department) | International Fire Code (2021) with Washington Amendments (WAC 51-54A) | Fire Sprinkler, Fire Alarm, and Fire Code Review |
| City and County Building Departments (including Seattle SDCI) | International Building Code (2021) with Washington Amendments (WAC 51-50) | Building Permits and Construction Inspections |
| Washington State Patrol, Office of the State Fire Marshal | WAC 212-80 | Fire Sprinkler Contractor Licensing and Certificates of Competency |
Typical arrangement. Confirm the reviewing office and adopted code editions at project kick-off.
Project Map
Taking Washington Projects Now
DGA is licensed in Washington and taking projects now. Washington work joins the project map as it is completed.
Seattle and the Puget Sound: As a fire protection engineer in Seattle, DGA takes on high-rise, mixed-use, laboratory, and residential buildings in Seattle, Bellevue, Tacoma, and Everett.
Kent Valley and the I-5 Corridor: Warehouse, distribution, and manufacturing buildings, where storage height and commodity drive the sprinkler design.
Spokane and Eastern Washington: Commercial, institutional, and industrial buildings, including food processing and cold storage, where water supply often shapes the design.
See 100+ completed projects across New York, New Jersey, and Pennsylvania on the Project Map →
When to Call DGA
When Washington Projects Call for a Fire Protection Engineer
WA Triggers
When You Need It
- Fire Marshal Review: New buildings, additions, and changes of occupancy that need fire protection approval under the Washington-amended International Fire Code.
- Seattle Projects: Sprinkler, fire alarm, and life safety documents for the Seattle Fire Department and SDCI.
- Warehouses & Storage Changes: New distribution buildings, taller racks, or a new commodity in an existing building.
- Review Comments: Plan review comments from a fire marshal or building department that need a technical response.
What We Deliver
Washington Engineering Deliverables
- PE-Stamped Design Documents: Sprinkler, standpipe, and fire alarm design documents sealed by a Washington PE.
- Hydraulics & Water Supply: Flow test evaluations, hydraulic calculations, and fire pump sizing with the local water purveyor.
- Code Analysis Reports: Occupancy, construction type, egress, and fire protection requirements under the Washington-amended IBC and IFC.
- Review Responses: Responses to plan review comments, with revised documents, through approval.
Process
How a Washington Engagement Works
01
Confirm the Reviewers
The engineer confirms which offices review the project: the city or county fire marshal and the building department.
02
Analyze the Building
The engineer reviews the occupancy, storage, and water supply before any design starts.
03
Design and Document
The engineer prepares the fire protection design, calculations, and code narrative for each reviewer.
04
Support Through Approval
The engineer answers review comments and supports inspections and acceptance testing.
FAQ
Frequently Asked Questions
Who reviews fire protection plans in Washington?
The city or county fire marshal reviews sprinkler, fire alarm, and fire code items, and the city or county building department issues the building permit. In Seattle, the Seattle Fire Department and the Seattle Department of Construction and Inspections share that review. DGA confirms the reviewing offices at the start of every project.
Which building and fire codes does Washington use?
Washington enforces the 2021 International Building Code and International Fire Code statewide, with Washington amendments in WAC 51-50 and WAC 51-54A. The State Building Code Council is in rulemaking on the 2024 editions, so DGA confirms the edition in force when the permit is filed.
Can you help with a project in Seattle?
Yes. DGA prepares fire protection documents for the Seattle Fire Department and coordinates with the SDCI building permit review.
Do you work in Spokane and eastern Washington?
Yes. DGA works statewide, including Spokane, the Tri-Cities, and Yakima, with the local fire marshal and building department on each project.
Are your engineers licensed in Washington?
Yes. Deliverables are prepared, reviewed, and sealed by a Professional Engineer licensed in Washington.
Can DGA act as the fire sprinkler engineer on a Washington project?
Yes. DGA sets the sprinkler design basis and hydraulic criteria as engineer of record, reviews the licensed sprinkler contractor’s layout drawings and calculations, and answers the review comments. See fire sprinkler design and hydraulic calculations.
From the Technical Library
Related Services
Related Services
High-Piled Storage Fire Protection Consulting
Commodity classification, high-piled storage permits, and ESFR design review.
Life Safety & Egress Consulting
Occupant load, egress capacity, and life safety plans for new and existing buildings.