Preparing for an Iowa electrician license exam? This guide explains how the Iowa Electrical Examining Board (part of the Department of Inspections, Appeals, and Licensing) structures its licenses, the eligibility pathway for each license type, how PSI testing sponsorship works, and what we could — and couldn't — confirm about the exam itself from official sources.
Quick Answer: What Do You Need?
| Licensing authority | Iowa Electrical Examining Board, Dept. of Inspections, Appeals, and Licensing (DIAL) |
| Testing provider | PSI Services LLC (4 test locations statewide) |
| License types | Apprentice, Unclassified Person, Journeyman (Class A), Master (Class A/B), Residential Electrician, Residential Master, Special Electrician (Irrigation / Disconnect-Reconnect A/C endorsements) |
| Passing score | 70% or higher (confirmed via DIAL's testing sponsorship document) |
| Application flow | Apply for the license type + submit a Testing Sponsorship Request → Board emails a Sponsorship Approval Letter with a PSI registration code → schedule and sit the exam through PSI → complete your license application at iowaelectrical.gov |
| NEC edition | Third-party sources report 2023 NEC; we could not independently confirm this against a current PSI bulletin — see the NEC Edition section below |
| Tabs / highlighting / notes | Not confirmed from a primary source — see note below |
Who Regulates Electricians in Iowa?
The Iowa Electrical Examining Board, operating under the Department of Inspections, Appeals, and Licensing (DIAL), sets eligibility rules and issues electrician licenses statewide. Iowa uses its own online licensing portal, iowaelectrical.gov, for applications, renewals, and license lookups, while PSI Services LLC administers the written exams at four testing locations around the state.
Iowa's Electrician License Types
Iowa licenses a wider range of electrical credentials than most states, each with its own eligibility path and PSI exam:
- Apprentice — entry-level, tied to a DOL-registered apprenticeship program
- Unclassified Person — a distinct entry-level category used in some residential eligibility pathways
- Journeyman (Class A)
- Master (Class A or Class B)
- Residential Electrician and Residential Master
- Special Electrician, with Irrigation System wiring and/or Disconnect/Reconnect (existing A/C or refrigeration equipment) endorsements
Journeyman Exam Eligibility
Per DIAL's official testing sponsorship requirements, Journeyman exam candidates must meet one of these paths:
- Completed a U.S. Department of Labor (DOL)-registered or associated apprenticeship program; OR
- Completed a Board-Approved Post-Secondary Electrical Program (PSEP) through a community college, with at least 6,000 hours of on-the-job training (OJT), plus a copy of your 2-year degree; OR
- Were employed as a journeyman prior to January 1, 1998, with verifiable documentation of 16,000 hours of electrical experience as a journeyman (apprentice hours don't count), including at least 8,000 hours between January 1, 1998 and January 1, 2008.
Master Exam Eligibility
- At least one year's experience, acceptable to the Board, as a licensed Class A or Class B journeyman electrician; OR
- Already a State of Iowa-licensed Master Class B electrician; OR
- Were employed as a master electrician prior to January 1, 1998, with verifiable documentation of 16,000 hours of electrical experience as a master electrician (apprentice and journeyman hours don't count), including at least 8,000 hours between January 1, 1998 and January 1, 2008.
Residential Electrician & Residential Master Eligibility
Residential Electrician candidates must meet one of five paths:
- At least one year's experience, acceptable to the Board, as a licensed Special Electrician with the Residential endorsement; OR
- 6,000 hours of experience as a DOL-registered apprentice electrician (you may sit the exam after 5,000 hours, but the license won't issue until 6,000 hours are complete); OR
- 4,000 hours working under the direct supervision of a Residential Master, Residential, Master, or Journeyman electrician, plus at least one academic year of an approved electrical trade school; OR
- 8,000 hours of verified experience as a licensed Unclassified Person plus at least 2,000 hours of verified residential wiring experience (affidavit required); OR
- Completion of a DOL-registered residential electrician apprentice program.
Residential Master candidates must:
- Hold a current Residential or Journeyman electrician license plus 2,000 hours of verified experience as one; OR
- Hold a current Special Electrician license with the Residential endorsement plus 4,000 hours of verified experience.
The Special Electrician Irrigation and/or Disconnect/Reconnect endorsement exams have no license or experience prerequisites to be sponsored for testing.
Apprentices and Post-Secondary Program Students
DOL-registered apprentices must hold a State of Iowa Apprentice License while working where licensure is required, and complete at least 8,000 hours of on-the-job training and 576 hours of classroom training. Through your program director, you submit either a letter attesting to your progress and completed hours, or a copy of your DOL apprenticeship completion certificate. Note: your Journeyman license is issued only upon completing the full apprenticeship program — passing the exam early does not by itself trigger licensure.
Post-Secondary Electrical Program (PSEP) students hold a State of Iowa Unclassified Person License while documenting OJT hours, and must complete and submit documentation of at least 6,000 hours of OJT plus a copy of their 2-year degree before requesting testing sponsorship.
The Testing Sponsorship Process
- Confirm which license/exam type you're eligible for using the pathways above.
- Submit a Testing Sponsorship Request form (available on DIAL's Electrical Licensing page) no earlier than 1 month before you're ready to test.
- Once approved, the Electrical Examining Board (State Fire Marshal Division) emails you a Sponsorship Approval Letter containing a registration code for PSI, plus instructions for scheduling.
- Schedule and sit your exam through PSI (1-855-746-8173 or psiexams.com).
- Apprentices submit their DOL Certificate of Completion after finishing their program; Journeyman, Master, Residential Electrician, Residential Master, and Special Electrician candidates apply for their license online at iowaelectrical.gov once they've passed.
One fee detail worth knowing: DOL-registered apprentices who worked in Iowa during their apprenticeship without holding a current Iowa apprentice license must pay $20 for each unlicensed year, plus a civil penalty fee, before testing.
What's on the Exam? (What We Could and Couldn't Confirm)
DIAL's own testing sponsorship document confirms the passing score is 70% or higher on the PSI exam, across all license types it covers. Third-party test-prep sites commonly describe the Master exam as 100 scored items over 240 minutes (with an additional 10 non-scored items adding 30 minutes) and the Residential exam as 50 questions over 120 minutes — but we were unable to load a current, authoritative PSI candidate bulletin to verify those specific numbers ourselves, so treat them as third-party-sourced rather than confirmed. Before you schedule, call PSI directly (1-855-746-8173) or ask the Electrical Examining Board for the current candidate bulletin, which should also spell out the exact tab, highlighting, and notes rules for your codebook — we did not find that policy stated in DIAL's own published materials and won't guess at it here.
What NEC Edition Does Iowa Test?
Third-party sources consistently report the 2023 NEC as Iowa's current tested edition, with the NFPA 70 Handbook 2023 also listed as an acceptable reference by some of those same sources. We couldn't independently verify that against a current PSI bulletin during our research, but since the 2023 edition is the best-supported answer we found, it's the one we'd point you toward below — just confirm with PSI or DIAL that it's still current before your test date, especially since Iowa, like several other PSI-administered states, may be mid-transition to a newer edition without a widely republished announcement.
The best-supported match for Iowa's current exam cycle based on our research — confirm it's still correct with PSI or DIAL before your test date.
Frequently Asked Questions
Is there one Iowa electrician exam, or several?
Several. Iowa runs separate PSI exams for Journeyman, Master, Residential Electrician, Residential Master, and Special Electrician (Irrigation and Disconnect/Reconnect) — each with its own eligibility path, all sharing a 70% passing score.
Can I take the Journeyman exam before finishing my apprenticeship?
You can sit the Residential Electrician exam after 5,000 of your required 6,000 apprentice hours, but for the standard Journeyman path, DIAL's documentation ties license issuance to full completion of your DOL-registered apprenticeship program regardless of when you pass.
What NEC edition should I buy for my Iowa exam?
Third-party sources report 2023 NEC as current, but we couldn't confirm this directly against a current PSI bulletin. Call PSI or DIAL to confirm before buying.
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.
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Official Sources
- DIAL — State of Iowa Testing Sponsorship Requirements and Information (revised December 14, 2023; checked September 3, 2026)
- DIAL — Electrical Licensing (checked September 3, 2026)
- Iowa Electrical Examining Board online portal (checked September 3, 2026)
Your Book Spot USA is not affiliated with DIAL, the Iowa Electrical Examining Board, PSI Services LLC, or NFPA. Candidate bulletins and licensing rules change — this page reflects our verification as of the date above, and we've flagged the specific facts we could not confirm from a primary source. Spot something outdated or incorrect? Let us know and we'll correct it.
