City of Mount Vernon (IL)

Illinois Authority Having Jurisdiction Solar permitting requirements

Spot something wrong?

These change with code cycles. If a requirement here is out of date or missing, tell us and we'll fix it.

Report a correction
NEC Code Version2023
SolarAPP+ StatusTargeted
Wet Stamps RequiredDigital Structural
Fire Setback EnforcedNo

Codes

NEC Code Version
2023
Code List

INTERNATIONAL BUILDING CODE (IBC) - 2021 EDITION

INTERNATIONAL EXISTING BUILDING CODE (IEBC) - 2021 EDITION

INTERNATIONAL MECHANICAL CODE (IMC) - 2021 EDITION

INTERNATIONAL FUEL GAS CODE (IFGC) - 2021 EDITION

INTERNATIONAL FIRE CODE (IFC) - 2021 EDITION

NATIONAL ELECTRIC CODE (NEC) - 2023

NFPA 101 LIFE SAFETY CODE - 2021 EDITION

ILLINOIS ENERGY CONSERVATION CODE

ILLINOIS PLUMBING CODE

ILLINOIS ACCESSIBILITY CODE & AMERICANS WITH DISABILITIES ACT (ADA)

 

IEBC Accepted
Yes
ASCE Code Specification
ASCE 7-16

SolarAPP+ & submittal

SolarAPP+ Status
Targeted
Any SolarAPP+ Restrictions
Yes
SolarAPP+ Restrictions
MPU,Derate
How Many Plansets Required
1
Revision Required
Yes
Rough Inspection
None
New Planset Required For Module Swap
No

Stamps

Ee Stamp Required On SLD
No
Wet Stamps Required
Digital Structural
Structural Calculations Required
Yes
Stamp Location On Plans
Top Right

Fire setbacks

Fire Setback Enforced
No
Setback Notes

Standard

Structural & loads

Wind Speed
90
Snow Load
20
Reducible Snow Load Allowed
Yes
Max Attachment Spacing
96
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
0.91

Battery / ESS

Unique Battery Placards Needed
No
ESS Notes

Standard

Separate ESS Disconnect Required
ESS Disconnect
ESS Elevation Detail Required
No

Plan set

Custom Placards Required
No

Ground mount

Ground Mount Fencing Required
Mesh/Scrim
Compiled from public records, 2026. Requirements change with code cycles and local amendments. Verify with the City of Mount Vernon (IL) 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.