NEC 2023 — Plain English Answers

NEC code questions answered in 10 seconds.

Stop sifting through PDFs on the job site. Ask any NEC question and get a plain-English answer with the code section cited — wire sizing, AFCI, GFCI, load calculations, service entrance. All of it.

★★★★★ Used by 200+ working electricians — "20 minutes of Googling → 30 seconds"
Electrician checking NEC code on phone with Flint
NEC
2023 — fully up to date
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Ask any NEC question — get the answer and the code section.

No account needed for your first 20 lookups. Ask it the way you'd ask another electrician.

Wire sizing, load calculations, circuit requirements

AFCI, GFCI, ARC-fault requirements by room and job type

Service entrance, panel clearance, bonding and grounding

EV charger installs, solar interconnections, generator hookups

Common questions — click to try:

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What Flint covers in NEC 2023.

The questions electricians actually ask on the job — not a code index, a working reference.

Wire Sizing & Ampacity

Conductor sizing from NEC 310.16, derating factors, conduit fill, aluminum vs copper — for any circuit, any length.

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AFCI & GFCI Requirements

Which rooms, which circuits, which job types. NEC 210.12 and 210.8 in plain English — no more guessing on a remodel.

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Service Entrance & Panels

Service conductor sizing, clearance requirements (NEC 110.26), main breaker sizing, meter socket rules.

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EV Charger Installs

Level 1 and Level 2 circuit requirements, NEC 625 compliance, dedicated circuit rules, load calculation guidance.

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Load Calculations

Residential and commercial load calc methodology, demand factors, service sizing — in the format an inspector expects.

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Grounding & Bonding

Equipment grounding conductor sizing, bonding jumper requirements, electrode system rules — the stuff that trips up inspections.

The NEC is 900 pages.
Your customer is waiting.

Every electrician has been there: mid-job, customer watching, trying to remember if this kitchen remodel needs AFCI on the countertop circuits or just the bedroom. 20 minutes later you've got the answer. There's a better way.

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Stop digging through PDFs

The NEC PDF is a labyrinth. Flint knows where everything is. Ask in plain English, get the section number and a usable answer in seconds.

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Works from your phone on-site

No app to download, no account to remember. Open the browser, ask the question, get the answer. While the customer is still standing there.

Pass the inspection

Flint cites the code section in every answer so you can verify and show the inspector exactly where the requirement comes from. No more surprises.

From the job site.

★★★★★
The NEC reference tool alone is worth it. I asked about AFCI requirements for a kitchen remodel and got a straight answer with the code section cited. Used to take me 20 minutes of Googling.
20 min lookup → 30 seconds
J
James Ortega
Ortega Electric, Houston TX
★★★★★
Asked it to size a 200A service run at 175 feet with 2% voltage drop max. Got the wire gauge, the calculation, and the NEC reference. Correct. I checked it.
Wire sizing in 15 seconds
D
Dave Pennington
DP Electrical, Calgary AB
★★★★★
I was sceptical but it handles the specific stuff — AFCI exemptions, load calc demand factors, grounding electrode system. Not just the surface stuff.
Switched from NEC PDFs permanently
L
Lisa Thornton
Thornton Electrical, Bristol UK

Common questions.

Flint is trained on NEC 2023 and gives you the relevant code section with every answer. For permit submissions and AHJ decisions, always verify with your local authority — but for day-to-day reference it's consistently accurate and saves hours of PDF searching.
Flint covers the base NEC 2023. Many states adopt NEC with local amendments — always check your state's adopted version for permit work. For general wiring questions the base NEC answers are reliable.
Yes. Ask it like you'd ask another electrician: "200A service upgrade, 150' run, what's the wire size?" Flint understands context and gives you a practical answer, not just a code section dump.
That's exactly what it's built for. No PDFs, no searching — just ask the question and get the answer. Works on any smartphone.
Yes. 20 free lookups per month, no card needed. Pro gives you unlimited access for less than a coffee a week.

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