Missouri doesn't run its own electrician exam, and it doesn't require a statewide license at all. Most Missouri electricians are licensed locally — by their city or county. But since 2019, the state has also offered an optional statewide Electrical Contractor license through the Office of Statewide Electrical Contractors (OSEC), which recognizes passing scores from five different national testing vendors instead of running one exam of its own. This guide explains exactly how that works, what it costs, and why we can't give you one single "here's the NEC edition to study" answer the way we can for most states.
Quick Answer: What Do You Need?
| Licensing authority | Office of Statewide Electrical Contractors (OSEC), Missouri Division of Professional Registration — for the optional statewide license only. Individual licensure is otherwise local. |
| Is a state license required? | No. The statewide Electrical Contractor license is optional. If you're already licensed locally, or work where no license is required, you don't need it. |
| Testing provider | No single vendor — OSEC accepts exams from ICC, Prov Inc., NASCLA (via PSI), Prometric, and PSI Services, plus several legacy/defunct administrators |
| Exam format / NEC edition | Varies entirely by which vendor's exam you take — there is no single Missouri-specific format or code edition |
| Alternative path | Already locally licensed contractors may qualify without a new exam, via 12,000 hours of verifiable experience or 6 of the last 8 years locally licensed |
| Application fee | $200 |
| Renewal | $100, triennial (every 3 years) |
| Insurance requirement | $500,000 liability insurance |
Who Regulates Electrical Work in Missouri?
There is no Missouri state electrical board that licenses individual journeymen or masters, and no state-administered exam. Instead:
- Individual electrician licensing (journeyman/master) happens entirely at the city or county level. Requirements, exams, and fees vary by jurisdiction.
- Electrical contractor (business) licensing can happen locally, or, since July 1, 2019, through the Office of Statewide Electrical Contractors (OSEC), part of the Missouri Division of Professional Registration — a genuinely statewide credential, authorized by Senate Bill 240 (effective August 28, 2017) and Senate Bill 862 (effective August 28, 2018), codified at Sections 324.900–324.945, RSMo.
Is the Statewide License Mandatory?
No. Per OSEC's own FAQ: if you only work in places where you're already licensed, or in a political subdivision that doesn't require an electrical contractor license at all, you are not required to get the statewide license. It exists specifically for contractors who want one credential recognized across the whole state instead of maintaining separate licenses city by city.
Per Section 324.920.4, RSMo: a person operating in a political subdivision that doesn't require a local license, or who already holds the local license that subdivision requires, is not required to hold a statewide license to keep operating there.
Two Paths to a Statewide License
If you decide you want the statewide license, OSEC's statute gives you two ways to qualify:
- Pass an approved exam from one of OSEC's recognized testing vendors (see the list below), plus meet the office's other application requirements (proof of any required local bonding, $500,000 liability insurance, and being employed at a supervisory level by the electrical contracting business you'll represent).
- Qualify without a new exam if you already hold a local electrical contractor or master electrician license issued by a Missouri political subdivision, that local license required passing a standardized, nationally accredited, NEC-based exam from an independent testing agency, and you have either 12,000 hours of verifiable practical experience or have held that local license for 6 of the previous 8 calendar years (per Section 324.920.2, RSMo).
A statewide license holder represents only one firm, company, or organization at a time, and must be employed at a supervisory level by that business.
Approved Exams and Vendors
This is the part that makes Missouri different from almost every other state we cover: OSEC doesn't write or administer its own exam. It maintains a list of approved third-party exams instead, and that list spans several vendors and several code years. Per OSEC's Approved Examinations listing (revised 2022-02-01):
| Vendor | Approved Exams |
|---|---|
| International Code Council (ICC) | Electrical Contractor (2014, code F49); Master Electrician (2017 code G16, or 2014 code F16); Journeyman Electrician (2017 code G17, or 2014 code F17) |
| Prov, Inc. | Electrical Contractor, Master Electrician, Master Residential Electrician, Journeyman Electrician, Journeyman Residential Electrician — each in 2011, 2014, or 2017 code years |
| NASCLA (via PSI Services LLC) | Electrical Contractors (Master/Unlimited Electricians); Journeyman Electricians |
| Prometric | Master Electrical, Master Residential Electrical, Journeyman Electrical, Journeyman Residential Electrical (as another state board's exam) |
| PSI Services, LLC | Electrical Contractor, Master Electrician, Master Residential Electrician, Journeyman Electrician, Journeyman Residential Electrician (as another state board's exam) |
OSEC also accepts passing scores from several test administrators no longer in business: Block and Associates, Inc., Experior Examination & Licensing Services, NAI Block, Southern Building Code Congress International (SBCCI), and Thompson Prometric.
Because each of these exams has its own format, question count, passing score, NEC edition, and reference-material rules, we can't give you one universal answer here. Once you know which vendor and code year you're testing under, look up that vendor's own current candidate information bulletin for the specifics — the same way you would for a single-vendor state.
Fees
| Item | Fee |
|---|---|
| License application | $200 |
| Triennial renewal | $100 |
| Inactive triennial renewal | $200 |
| Reactivation | $100 |
| Reinstatement | $250 |
| Temporary license | $100 |
| Duplicate license | $10 |
| Verification of license | $10 |
| Insufficient check fee | $25 |
The exam fee itself is separate and set by whichever vendor administers the exam you choose — not by OSEC.
What the Statewide License Does (and Doesn't Do)
- It doesn't replace local permitting. You'll still get your electrical permits from the same local entity as before — the state doesn't issue permits or inspect work.
- It doesn't replace local bonding. If your city or county requires a bond, you still post it locally, but you'll need to show OSEC proof of that bond when you apply.
- It requires $500,000 in liability insurance as a condition of the statewide license, regardless of what your local jurisdiction requires.
- A local business license may still be required on top of the statewide license — but a political subdivision cannot require a statewide-license holder to pass any additional local exam or trade-proficiency assessment.
- No continuing education is currently required for the statewide license (per OSEC's 2019 FAQ), though the enabling statute allows the state to add a CE requirement by rule in the future — worth double-checking on OSEC's site before you rely on this.
- There's no formal reciprocity provision for out-of-state licenses, but an out-of-state exam and verified experience hours may still satisfy Missouri's requirements — check OSEC's regulation 20 CSR 2117-2.010 directly.
Local City and County Licensing
Since most Missouri electricians are actually licensed locally rather than statewide, your city or county's specific requirements matter more than OSEC's. Kansas City and St. Louis County are commonly cited as running the two largest local programs in the state, but we have not yet independently verified their current exam formats, fees, or NEC editions against their own primary sources, so we're not going to guess at those details here. If you're working in either metro area — or anywhere else in Missouri — confirm directly with that city or county's building/licensing department.
Frequently Asked Questions
Do I need a Missouri state electrician license?
Missouri has no state journeyman or master electrician license at all — that's handled locally. The state's only electrical credential is the optional statewide Electrical Contractor (business) license through OSEC.
What NEC edition should I study?
It depends entirely on which exam vendor and code year you choose from OSEC's approved list — there's no single Missouri-wide answer. Once you've picked your exam, check that vendor's current candidate bulletin for the exact edition tested.
Can I skip the exam if I'm already locally licensed?
Possibly. If your local license required a standardized, NEC-based exam and you have 12,000 hours of verified experience, or you've held that local license for 6 of the past 8 years, you may qualify for the statewide license without retesting.
Does Your Book Spot USA guarantee I'll pass?
No. No book or study guide can guarantee an exam result, and we don't claim otherwise.
Study Materials
Because OSEC accepts exams built on several different NEC code years (2011, 2014, 2017, and whatever current edition NASCLA or PSI reference), there's no single guaranteed-match codebook the way there is for a single-vendor state. Most of Missouri's newer-code-year options and the NASCLA route reference more recent NEC editions, so we'd point you toward our current-edition study bundle below as the best general-purpose choice — just confirm the exact edition against your chosen vendor's bulletin before relying on its page or section numbers matching your exam.
Best general-purpose match for Missouri's newer-code-year exam options — confirm against your specific vendor's bulletin before relying on it for exam day.
Ordering for a crew or training program? Request bulk pricing.
Official Sources
- Missouri Office of Statewide Electrical Contractors (checked September 4, 2026)
- Missouri OSEC — Approved Examinations listing, revised 2022-02-01 (obtained via pr.mo.gov)
- Missouri OSEC — Fees page (obtained via pr.mo.gov)
- Missouri OSEC — FAQ's for Electrical Contractors, revised 2019-07 (obtained via pr.mo.gov)
Your Book Spot USA is not affiliated with the Missouri Division of Professional Registration, OSEC, ICC, NASCLA, Prov, Prometric, PSI Services, or NFPA. Candidate bulletins and licensing rules change — this page reflects our verification as of the date above. Spot something outdated? Let us know and we'll correct it.
