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County of Ada (ID)

Idaho Authority Having Jurisdiction Solar permitting requirements
NEC Code Version2017
Fire Code Version2018 Building Code
SolarAPP+ StatusTargeted
Wet Stamps RequiredDigital Structural
Fire Setback Enforced1

Codes

NEC Code Version
2017
Fire Code Version
2018 Building Code
Code List

2018 INTERNATIONAL BUILDING CODE ADA COUNTY AMENDMENTS

2018 INTERNATIONAL RESIDENTIAL CODE ADA COUNTY AMENDMENTS 2018 INTERNATIONAL MECHANICAL CODE ADA COUNTY AMENDMENTS

2018 INTERNATIONAL FUEL GAS CODE ADA COUNTY AMENDMENTS

2018 INTERNATIONAL ENERGY CONSERVATION CODE ADA COUNTY AMENDMENTS

2018 INTERNATIONAL WILDLAND-URBAN INTERFACE CODE ADA COUNTY AMENDMENTS

2018 INTERNATIONAL SWIMMING POOL AND SPA CODE ADA COUNTY AMENDMENTS

2018 INTERNATIONAL EXISTING BUILDING CODE ADA COUNTY AMENDMENTS

ASCE Code Specification
ASCE 7-16

SolarAPP+ & submittal

SolarAPP+ Status
Targeted
Any SolarAPP+ Restrictions
1
SolarAPP+ Restrictions
MPU,Derate
How Many Plansets Required
1
Revision Required
1
Rough Inspection
Racking Inspection
New Planset Required For Module Swap
1

Stamps

Ee Stamp Required On SLD
No
Wet Stamps Required
Digital Structural
Structural Calculations Required
Yes
Stamp Location On Plans
Unspecified
Date On Stamps
Expiration Date

Fire setbacks

Fire Setback Enforced
1
Setback Notes

* For properties is a Rural Base District (RP, RR, and Rural Residence) the setbacks can be found in Section 8-2A of the Ada County Code. * For properties in a Residential Base District (RUT, RSW, R1-R20), setbacks can be found in Section 8-2B of the Ada County Code.

Structural & loads

Wind Speed
115
Wind Notes

Exposure Category C

Snow Load
999
Snow Load Notes

25 PSF Roof Snow load, 20 PSF Ground Snow load

Reducible Snow Load Allowed
1
Max Attachment Spacing
96
Structural Notes

## Engineering Letter Required: Need to ensure the roof can support the load All structural stamps need to have the date it was stamped and the expiration date of stamp Wind = 115 mph Ground snow load = 20 psf Roof snow load = 25 psf Seismic = C ## Important Information: * Want a engineered letter that the load will support weight on single family or detached structure or if modification will or not be needed. * _ **No firecode with BD but need to talk to fire department depending on what jurisdiction you are in**_. * Ground mounts depth diameter of the holes, need engineer stamps on those, setbacks addressed on planning on zoning side. **REVISIONS** * Any plan changes will require new engineering docs * For in house designs update the "Revisions" section of the title block above the the installer logo on each page

Minimum Ground On Roof
#10

Electrical

Electrical Load Calcs Required
Derates
Allowed POI
Load Side Taps,Meter Adapter,PV Breaker,Line Side Taps
Panel Schedule Required
Partial Home Backup
Temperature Rating
90
De Rating Ampacity
0.91

Battery / ESS

Unique Battery Placards Needed
0
ESS Notes

Standard

Separate ESS Disconnect Required
ESS Disconnect
ESS Elevation Detail Required
No

Plan set

Custom Placards Required
0

Ground mount

Ground Mount Fencing Required
Yes
Ground Mount Notes

CAN NOT INSTALL ON HILLSIDE WITHOUT A SPECIAL APPLICATION AND CHECKLIST: * Preliminary Grading Plan * Slope Stabilization and Revegetation Plan and Report (Required to be done by a licensed Idaho Landscape Architect) * Engineering Hydrology Report * Soils Engineering Report * Visual Impact Report * Detailed letter needs to include more specifics. This may be captured in the Visual Impact report and the Revegetation plan however. * Deed for the property - shown at the top of the Master Application The inspection is done by the State of Idaho. Plan Set Requirements: * Show length and width of array, not just the square footage * Include distance from ground mount array to property lines * Show the distance between the GM array(s) and the septic system

Compiled from public records, 2026. Requirements change with code cycles and local amendments. Verify with the County of Ada (ID) 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.