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City of Atwater (CA)

California Authority Having Jurisdiction Solar permitting requirements
NEC Code Version2023
Fire Code Version2018 Building Code
SolarAPP+ StatusAdopted
Wet Stamps RequiredNone
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
Adopted
Any SolarAPP+ Restrictions
1
SolarAPP+ Restrictions
Existing Systems,Trenching,Derate
How Many Plansets Required
2
Revision Required
0
Rough Inspection
None
New Planset Required For Module Swap
0

Stamps

Wet Stamps Required
None
Structural Calculations Required
Yes - Non-Truss
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 B

Snow Load
0
Snow Load Notes

N/A

Reducible Snow Load Allowed
1
Max Attachment Spacing
96
Structural Notes
**For structures using rafters only:** SE digital stamps on all PV pages & PE Letter / Calcs.
Minimum Ground On Roof
#10

Electrical

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

Battery / ESS

ESS Notes

Standard

Separate ESS Disconnect Required
ESS Disconnect
ESS Elevation Detail Required
No

Plan set

Electrical Diagram

Centerfed 120% allowed MPU: Surge protective device required, label on ELD. If more than one disconnect is provided, they shall eb grouped. Each disconnect shall be one of the following: Service disconnects, marked as follows: EMERGENCY DISCONNECT, SERVICE DISCONNECT Meter disconnects marked as follows: EMERGENCY DISCONNECT, METER DISCONNECT, NOT SERVICE EQUIPMENT Other listed disconnects or circuit breakers on the supply side of each service disconnect that are marked as follows: EMERGENCY DISCONNECT, NOT SERVICE EQUIPMENT.

Custom Placards Required
1
Placards Notes

Location Placard needed if equipment is separated by a gate

Ground mount

Ground Mount Fencing Required
Situational
Ground Mount Notes

YES if lower than 6 feet

Compiled from public records, 2026. Requirements change with code cycles and local amendments. Verify with the City of Atwater (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.