City of Walnut (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

45329

Any SolarAPP+ Restrictions

1

SolarAPP+ Restrictions

Existing Systems,Trenching

How Many Plansets Required

3

Revision Required

1

New Planset Required For Module Swap

0

Stamps

Wet Stamps Required

Digital Structural

Structural Calculations Required

Yes

Fire setbacks

Fire Setback Enforced

1

Setback Notes

Standard

Structural & loads

Wind Speed

120

Wind Notes

Exposure Category B

Snow Load

0

Reducible Snow Load Allowed

1

Max Attachment Spacing

96

Minimum Ground On Roof

#10

Electrical

Electrical Load Calcs Required

Derates

Allowed POI

Meter Adapter,Line Side Taps,PV Breaker,Load 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

[LACOF]

This AHJ follows County of Los Angeles (ESS Requirements) (CA).

Please follow this link to County of Los Angeles (ESS Requirements) (CA)

ESS disconnect required within 6ft of MSP on same wall and not blocked by walls/gates/etc

Separate ESS Disconnect Required

ESS Disconnect

ESS Elevation Detail Required

Yes - with dimensions

Plan set

Plan Set Requirements

120% rule is allowed with calculations CANNOT DO TILT KITS Will not issue permit for a comp under the array

Electrical Diagram

120% allowed on center fed and engineering stamp not required

Custom Placards Required

1

Ground mount

Ground Mount Fencing Required

Mesh/Scrim