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County of Butte (CA)

California Authority Having Jurisdiction Solar permitting requirements
NEC Code Version2023
Fire Code Version2018 Building Code
SolarAPP+ StatusTesting
Wet Stamps RequiredDigital Electrical
Fire Setback Enforced1

Codes

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

2025 CALIFORNIA BUILDING CODE

2025 CALIFORNIA ELECTRICAL CODE

2025 CALIFORNIA FIRE CODE

2025 CALIFORNIA PLUMBING CODE

2025 CALIFORNIA MECHANICAL CODE

2025 CALIFORNIA ENERGY CODE

2025 CALIFORNIA RESIDENTIAL CODE

2025 CALIFORNIA ADMINISTRATIVE CODE

ASCE Code Specification
ASCE 7-16

SolarAPP+ & submittal

SolarAPP+ Status
Testing
Any SolarAPP+ Restrictions
1
SolarAPP+ Restrictions
MPU,Derate,Derate
How Many Plansets Required
3
Revision Required
1
New Planset Required For Module Swap
0

Stamps

Ee Stamp Required On SLD
Yes - Derate
Wet Stamps Required
Digital Electrical
Structural Calculations Required
Yes
Stamp Location On Plans
Unspecified
Date On Stamps
Expiration Date

Fire setbacks

Fire Setback Enforced
1
Setback Notes

Standard

Structural & loads

Wind Speed
110
Wind Notes

Exposure Category C

Snow Load
999
Snow Load Notes

Elevation (Feet) Minimum Ground Snow Load 0 - 1499 No Requirements 1500 - 1999 20 psf 2000 - 2499 37 psf 2500 - 2999 55 psf 3000 - 3499 75 psf 3500 - 3999 97 psf 4000 - 4499 122 psf 4500 - 4999 149 psf 5000 - 5499 180 psf 5500 - 6000 215 psf https://www.distancesto.com/elevation.php

Reducible Snow Load Allowed
1
Max Attachment Spacing
96
Structural Notes

Structural calcs required for mobile or manufactured homes and for ground mounts. Please include the calculations that justify the letter and results. Engineer or architect design is required if: \- Panel and support framing exceeds 3.0 pounds per square foot. \- Panel to roof plane angel exceeds 30 degrees or 40 degrees from horizontal.

Minimum Ground On Roof
#10

Electrical

AC Disconnect Required
Yes
Electrical Load Calcs Required
Derates
Allowed POI
Load Side Taps,PV Breaker,Line Side Taps,Meter Adapter
Panel Schedule Required
Partial Home Backup
Temperature Rating
90
De Rating Ampacity
0.96

Battery / ESS

Unique Battery Placards Needed
0
ESS Notes

No published information about battery placement. If battery system, include this note on ELD: Producer's storage device(s) will not cause the Host Load to exceed its normal peak demand. Normal peak demand is defined as the highest amount of power required from the Distribution System by Producer's complete facilities without the influence or use of the energy storage device(s).

Separate ESS Disconnect Required
ESS Disconnect
ESS Elevation Detail Required
No

Plan set

Plan Set Requirements
  • Remove all NEC code references
  • Bus certs are NOT accepted by this AHJ
  • AHJ accepts Line side taps as long as we can prove it is UL listed (MPU w/ Line side Tap is acceptable)
Site

Label all structures on site plan, provide square footage, and indicate whether the structure has electrical installed in it.

Attachment Detail

Indicate flush mount or panel to roof plane angle

Electrical Diagram

Standard

Custom Placards Required
1
Placards Notes
  • Permanent placards as provided on placard page of plan set

Ground mount

Ground Mount Fencing Required
Situational
Ground Mount Notes

AHJ does not permit Nuance racking, please ensure designs are built with Ironridge



1/3/24 10' OF FREE VEGETATION AROUND GM IS REQUIRED IN SITE PLAN


_20 ft. in front, 15 ft. on the side, and 15 ft. in the rear for structures greater than 15 ft. or 5 ft. from rear for structures less than 15 ft. in height_ *


Site Specific Structural Calcs are required for ground mounts even if the above does not apply to the project. Received plan check on Ticknor, Mark. AHJ wants project specific calcs. We can't utilize IR pre-designed calcs for GM's panels. *


If GM is under 8 ft high, setbacks are 20 ft in the front, 5 ft on the side & back. If GM is 8-10 ft high, setbacks are 30 ft in the front, 15 ft on the side & back. Turn-around: 3-4 weeks. If GM is taller than 10 ft., a Minor Use Permit (Discretionary Application) must be submitted, and all neighbors within 300 ft. must be notified. Turn-around: Up to 3 months.


For requesting "Septic As Built" .


Please provide a separate ground rod for the solar array structure. C.E.C Article 690.47 and 250. Please provide 10โ€™ free of vegetation around the array system. CRC Section R324.7.2.6 & CFC 605.11. [a past project]


The site plan provided must match the site plan County has on file for this property. Records must show items such as garage. Also, permits for an existing shed or swimming pool shown on the site plan must be valid. If the AHJ doesn't have plot plans, do not refer to GPRS.


They will only approve As-Builts provided by their certified installers. See Contacts in Files section. (Oroville - Oroville Sewer and Drain/Roto-rooter has done As-Builts for us). Septic and leech field location info (or sewer and water line info when the home is not on septic) must be demonstrated on all pages with a site plan.


12/18 DO NOT COMPLETE PLANS UNTIL YOU GET THE AS BUILT SEPTIC LOCATION

Setback Front Yard
20
Setback Back Yard
15
Setback Side Yard
15
Compiled from public records, 2026. Requirements change with code cycles and local amendments. Verify with the County of Butte (CA) 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.