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City of Tumwater (WA)

Washington Authority Having Jurisdiction Solar permitting requirements
NEC Code Version2023
Fire Code Version2018 Building Code
Fire Setback Enforced1

Codes

NEC Code Version
2023
Fire Code Version
2018 Building Code
Code List

2021 INTERNATIONAL BUILDING CODE

2021 INTERNATIONAL RESIDENTIAL CODE

2021 INTERNATIONAL FIRE CODE

2021 INTERNATIONAL ENERGY CONSERVATION CODE

2021 INTERNATIONAL EXISTING BUILDING CODE

2021 INTERNATIONAL FUEL GAS CODE

2021 INTERNATIONAL MECHANICAL CODE

2021 INTERNATIONAL PLUMBING CODE

2023 NATIONAL ELECTRICAL CODE

ASCE Code Specification
ASCE 7-16

SolarAPP+ & submittal

Revision Required
0
New Planset Required For Module Swap
0

Fire setbacks

Fire Setback Enforced
1

Structural & loads

Wind Speed
97
Snow Load
25
Snow Load Notes

https://hazards.atcouncil.org/#/

Reducible Snow Load Allowed
1

Electrical

Allowed POI
Meter Adapter,Line Side Taps,PV Breaker,Load Side Taps
Supply Tap Neutral Ground Bond Required
1

Plan set

Plan Set Requirements

Additional electrical permit required through the State of Washington - Labor & Industries (WA). Please see page for requirements.


For all Trenches

  • 2 Disconnects required - one at each end of trench
  • Required for AC or DC trenches
Electrical Diagram

For all Line Side Connections:

  • Neutral and ground bonded in fused disconnect
  • #6 bare copper run from N/G bar to (E) MSP's GEC and crimped
  • Schedule 80 PVC must be used in between fused disconnect and MSP - only showing 2 hots and neutral
  • All other conduit can be EMT

For all Load Side Taps:

  • Schedule 80 PVC must be used in between disconnect and MSP
Custom Placards Required
0
Compiled from public records, 2026. Requirements change with code cycles and local amendments. Verify with the City of Tumwater (WA) building department before you rely on this, and treat it as a research head start, not a ruling. Getting quotes? Run them through the quote checker first.