If you've been pulling electrical permits in New Jersey, you've filed plenty of F120s. But contractors who work on larger projects — additions, full renovations, commercial build-outs — eventually run into the F100 requirement and have questions.
Here's what the F100 is, when you need it, and how it relates to your electrical permit.
What is an F100?
The F100 is the NJ UCC Construction Subcode permit application — commonly called the "construction jacket." It's the overarching building permit that ties together all the trade-specific subcode permits for a project.
When a project involves multiple types of work — say, an addition that requires electrical, plumbing, and structural changes — the F100 is the master document that tracks all of the subcode applications under a single project. Think of it as the file folder that holds the F120, F140, F160, F170, and any other subcodes for the job.
The F100 is reviewed by the Construction Subcode Official, who is different from the Electrical Subcode Official (who reviews the F120) or the Plumbing Subcode Official (who reviews the F160). The Construction Official oversees the project holistically — structure, fire safety, code compliance — while each subcode official reviews their specific trade.
When do you need an F100?
You need an F100 when:
- The project involves structural work (additions, new construction, structural modifications)
- The project involves multiple trades that require coordination under one permit
- The municipality requires a construction jacket for any renovation above a certain scope or value
- You're doing a commercial build-out
- The project involves a Certificate of Occupancy (C of O) — new C of Os always require an F100
You may not need an F100 when:
- The project is an electrical-only repair or upgrade with no structural or multi-trade component
- A simple residential panel upgrade or circuit addition in a municipality that doesn't require an F100 for electrical-only work
- EV charger installation with no service upgrade
The specific threshold varies by municipality. Some require F100s for projects above a certain dollar value; others require them any time more than one subcode is involved; others have more relaxed rules for residential. Check with the local Construction Office if you're uncertain.
How does the F100 relate to the F120?
The F120 is a standalone permit for electrical work. The F100 is the construction jacket that may or may not accompany it.
Electrical-only jobs (panel upgrade, rewire, EV charger): F120 only, unless the municipality requires an F100 for your specific scope.
Multi-trade renovation projects (addition, gut renovation, commercial build-out): F100 + F120 + whatever other subcodes apply. The F100 is the governing permit and all subcode permits are filed under it.
New construction: Always F100 + all applicable subcodes.
When ClearPath files permits for multi-trade jobs, we file the F100 and all applicable subcodes as a coordinated package. This ensures all subcode applications are linked to the same project and reviewed concurrently rather than sequentially.
F100 vs F120: Side-by-Side
| | F100 | F120 | |---|---|---| | Full name | Construction Subcode Application | Electrical Subcode Application | | Reviewed by | Construction Subcode Official | Electrical Subcode Official | | Required for | Structural work, multi-trade projects, new construction | All electrical work requiring a permit | | Required with | Multiple subcode permits | Typically standalone, or paired with F100 | | Triggers C of O? | Yes (if new or change of occupancy) | No |
Common questions about the F100
Does a panel upgrade need an F100?
For a standard residential panel upgrade with no structural work — typically no. You need an F120 (and a PSE&G or JCP&L ESI application for service changes). Some municipalities require an F100 for upgrades above a certain amperage or job value. ClearPath checks municipality-specific requirements before filing.
Does a home addition need an F100?
Yes. Any addition that is a structural project requires an F100. The addition's electrical work is filed as an F120 under the F100 jacket.
Does a commercial build-out need an F100?
Almost always yes. Commercial projects involving multiple trades, multiple subcodes, or a change of occupancy require an F100.
Who signs off on the F100?
The Construction Official signs off on the F100 after all subcode officials have signed off on their respective trade inspections. Final F100 sign-off is required for a Certificate of Occupancy.
How much does the F100 permit cost?
The F100 permit fee is calculated separately from subcode permit fees. It's typically based on the construction value or square footage of the project. Fees vary by municipality.
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Need help determining which permits your project requires? Contact ClearPath — we'll tell you exactly which forms need to be filed and handle the whole process flat-fee.