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City of Rancho Cucamonga (CA)

California Authority Having Jurisdiction Solar permitting requirements
NEC Code Version2023
Fire Code Version2018 Building Code
SolarAPP+ StatusAdopted
Wet Stamps RequiredDigital Structural
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,MPU
How Many Plansets Required
2
Revision Required
1
Rough Inspection
None
New Planset Required For Module Swap
0

Stamps

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

Standard

Structural & loads

Wind Speed
110
Wind Notes

Exposure Category C

Snow Load
5
Reducible Snow Load Allowed
1
Max Attachment Spacing
96
Structural Notes

Standard

Minimum Ground On Roof
#10

Electrical

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

If using an H-Frame:

  • Identify the distance between the H frame and property line on site plan. The H-frame can not be attached to the property line wall or fence.
  • Provide height of the H Frame.
  • If H-frame height exceeds 6 ft, then it cannot be within 5ft of the property line

Battery / ESS

Unique Battery Placards Needed
0
ESS Notes

Battery jobs require special placards.


if using lug kit:

  • we need to provide lug kit spec sheet
  • confirm if lugs are load or line side
Separate ESS Disconnect Required
ESS Disconnect
ESS Elevation Detail Required
No

Plan set

Plan Set Requirements

All projects are NOT solar app qualified

Roof mounted systems must always be flush-mounted (parallel to roof pitch)

EV charger may not be included on solar plans. Please submit EV charger as a separate application. Include Site plan, ELD, and spec sheet

EV Chargers require heat detectors.

  • Please provide manufacturers specification sheet for (N) Heat Detector System.
  • Please show heat detector location on plans.
Roof Plan

Roof mounted systems must always be flush-mounted (parallel to roof pitch)

Attachment Detail Notes

Roof Mount [Distance between module and roof shall not exceed 6 inches]

Electrical Diagram

Centerfed 120%: Sometimes (See Design Notes)

120% rule allowed per CEC 705.12(B)(2)(3)(d)

MUST flatten and optimize for digital submittal.

  • (https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/Drawing-text-appears-as-Comments-in-a-PDF-created-by-AutoCAD.html)
  • [In AutoCad] On the command line, enter EPDFSHX and change the value to 0 (zero).

If using SquareD lug kit, attach spec sheets

Custom Placards Required
0
Non Standard Revision Requirements

This AHJ requires that changes be listed word for word.

If it is a system size change, the letter needs to list what the new system size is.

i.e. System changed to 27 modules, 9.500 kW

Listing a module change with just the new panel name will not alert the AHJ that they need to change the permit description.

It is important that the description on the permit always match the plans in order for inspection to pass.

Ground mount

Ground Mount Fencing Required
Yes
Ground Mount Notes

**Ground Mounts** cannot exceed 6FT in height. Must be in rear yard. Setbacks are 5' from sides & 5' from rear. Can not have an easement. Outside of rear yard, must design as if it's an accessory building.

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