County of Contra Costa (CA)
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
- Date SolarAPP+ Accepted
- 45196
- Any SolarAPP+ Restrictions
- 1
- SolarAPP+ Restrictions
- Existing Systems,Trenching
- How Many Plansets Required
- 3
- Revision Required
- 1
- Rough Inspection
- None
- New Planset Required For Module Swap
- 0
Stamps
- Ee Stamp Required On SLD
- Yes
- Wet Stamps Required
- None
- Structural Calculations Required
- Yes
- Stamp Location On Plans
- Unspecified
- Date On Stamps
- Expiration Date
Fire setbacks
- Fire Setback Enforced
- 1
- Setback Notes
3' Setbacks on both sides of ridge
Structural & loads
- Wind Speed
- 999
- Wind Notes
Wind Speed depends on location. Enter project address at
ASCE Hazard Tool
https://ascehazardtool.org/
Exposure Category B
- Snow Load
- 0
- Snow Load Notes
N/A
- Reducible Snow Load Allowed
- 1
- Max Attachment Spacing
- 96
- Structural Notes
PE Stamps; SE / EE digital stamps on all PV Pages & PE Letter / Calcs. WS 92 MPH The Structural Calcs required a Stamp and Engineer Signature.
- 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
- 0.96
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
- Yes
Plan set
- Plan Set Requirements
- Regardless of Solarapp or not, show BOS location due to recent rejections
- Cover Page
AHJ wants the Scope of Work on cover page, including additional work. See example:
Scope of Work
9.55 kW PV Roof Mount
(1) Battery
225A MPU
- Site
- Show roof access point on plans
- Label all property lines and include dimensions, all existing and proposed building/structures/uses clearly labeled with setbacks
- 3' Setbacks on both sides of ridge
- Regardless of Solarapp or not, show BOS location due to recent rejections
- Roof Plan
_**Roof Mounts**_ need to show the following: * 'Required Structural Criteria' form required (prefilled packet uploaded below for standard 2x4 trusses projects)
MAKE SURE ATTACHMENT SPACING COMPLIES WITH THE STRUCTURAL CRITERIA
(Benabou, Eliahou) If roof pitch is more than 26 degrees, spacing of the anchors to the rafters shall be 2 feet. Maximum spacing of 4 feet is also acceptable but shall be staggered from row-to-row , per table 1, part 3, of the California solar permitting guidebook , third edition; or, provide calculations and drawings, stamped, and signed by a California licensed civil engineer
FD requires a Full Report UL9540A
- Attachment Detail
replace 3" min - 6" max with 2" min and 10" max per Pierce, Lokke DCR.
- Electrical Diagram
- Electrical Diagram Notes
LST [LINE SIDE TAP WILL BE INSTALLED PER UL SPECIFICATIONS AND CERTIFIED BY A NRTL ENGINERR PRIOR TO FINAL INSPECTION. A REPORT WILL BE MADE AVAILABLE TO THE CITY INSPECTOR AT THAT TIME FOR EVALUATION AND CONFIRMATION OF FIELD LISTING]
- Label Page
- Custom Placards Required
- 1
Ground mount
- Ground Mount Fencing Required
- No
- Ground Mount Notes
_**Ground Mounts**_ * IronRidge calcs & span charts are acceptable engineering for GM - include in specs ****For septic map and plot plan request**** Check the request for records file attached below to request septic records, or submit form via link below
12/4/24 - please include ground mount checklist with plan set as it is required for submittal
- Setback Front Yard
- 3
- Setback Back Yard
- 3
- Setback Side Yard
- 3