City of Du Quoin (IL)

Illinois Authority Having Jurisdiction Solar permitting requirements

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Wet Stamps RequiredDigital Structural

Codes

ASCE Code Specification
ASCE 7-16

SolarAPP+ & submittal

Revision Required
No
Rough Inspection
None
New Planset Required For Module Swap
No

Stamps

Wet Stamps Required
Digital Structural
Structural Calculations Required
Yes

Structural & loads

Wind Speed
90
Snow Load
20
Reducible Snow Load Allowed
Yes

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 Du Quoin (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.