Town of Johnston (SC)

South Carolina Authority Having Jurisdiction Solar permitting requirements

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NEC Code Version2020
Fire Code Version2018 Building Code

Codes

NEC Code Version
2020
Fire Code Version
2018 Building Code
Code List

2021 INTERNATIONAL BUILDING CODE 2021 INTERNATIONAL RESIDENTIAL CODE 2021 INTERNATIONAL FIRE CODE 2021 INTERNATIONAL PLUMBING CODE 2021 INTERNATIONAL MECHANICAL CODE 2021 INTERNATIONAL FUEL GAS CODE 2020 NATIONAL ELECTRICAL CODE 2009 INTERNATIONAL ENERGY CONSERVATION CODE (ENERGY STANDARD ACT)

ASCE Code Specification
ASCE 7-16

SolarAPP+ & submittal

How Many Plansets Required
Other (See Submission Notes)
Revision Required
No
New Planset Required For Module Swap
No

Fire setbacks

Setback Notes

Standard

Structural & loads

Wind Speed
94
Snow Load
10
Reducible Snow Load Allowed
Yes
Minimum Ground On Roof
#10

Electrical

Allowed POI
Load Side Taps,Meter Adapter,PV Breaker,Line Side Taps
Temperature Rating
90
De Rating Ampacity
0.91

Battery / ESS

Unique Battery Placards Needed
No
ESS Notes

Standard

Ground mount

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