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Code practice that shows its work. Get focused practice, clear explanations, and a plan for the topics that need more work.
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CLEAR, CITED PRACTICEPractice preview
ELECTRICAL CODE PRACTICE — NEC 2023
One question closer.
A dwelling bathroom receptacle circuit must have a rating of at least…
A 15 amperes
B 20 amperes ✓
C 30 amperes
D 40 amperes
Know the why.
At least one 120-volt, 20-ampere branch circuit supplies bathroom receptacle outlets. Check the dedicated-circuit rule and its exception.
NEC 2023 · 210.11(C)(3)Practice. Understand. Repeat.01 / 200
CODE-REFERENCED EXPLANATIONSFOCUSED PRACTICE TESTSWEAK-AREA TRACKINGMOBILE-READY FLASHCARDS
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Code fundamentals, certification practice, and Construction safety study companions.
16Available banks
3,142Cited questions
5Tracks
$79Whole library, one time
Electrical 4 banks · 600 questions
See the Electrical track →
- Electrical Code Practice — NEC 2023General practice · 200 questionsNEC 2023AvailableExplore →
- Advanced NEC Calculations Practice — NEC 2023General practice · 200 questionsNEC 2023AvailableExplore →
- NFPA 70E Electrical Safety Practice — 2024 editionGeneral practice · 200 questionsNFPA 70E 2024AvailableExplore →
- PV Systems Code Practice — NEC 2023 Articles 690 and 705 (planned)Planned · 20 questions in developmentNEC 2023PlannedSyllabus →
Plumbing & Gas 5 banks · 943 questions
See the Plumbing & Gas track →
- Plumbing Code Fundamentals — IPC 2021 trackGeneral practice · 154 questionsIPC 2021AvailableExplore →
- Advanced IPC Design Practice — IPC 2021General practice · 192 questionsIPC 2021AvailableExplore →
- Fuel Gas Code Practice — IFGC 2021General practice · 197 questionsIFGC 2021AvailableExplore →
- Plumbing Code Practice — UPC 2021 trackGeneral practice · 200 questionsUPC 2021AvailableExplore →
- Backflow and Cross-Connection Control Practice — IPC 2021 §608General practice · 200 questionsIPC 2021AvailableExplore →
Mechanical / HVAC 4 banks · 600 questions
See the Mechanical / HVAC track →
- HVAC Fundamentals PracticeGeneral practice · 200 questionsFundamentalsAvailableExplore →
- EPA Section 608 Practice — Universal (Core, Types I–III)Exam-specific · 200 questions40 CFR 82AvailableExplore →
- Mechanical Code Practice — IMC 2021General practice · 200 questionsIMC 2021AvailableExplore →
- Energy Code Practice — IECC 2021 (planned)Planned · 20 questions in developmentIECC 2021PlannedSyllabus →
Safety 3 banks · 600 questions
See the Safety track →
- OSHA 30-Hour Construction Study CompanionStudy companion · 200 questions29 CFR 1926All-accessExplore →
- OSHA 10-Hour Construction Study CompanionStudy companion · 200 questions29 CFR 1926All-accessExplore →
- OSHA 30-Hour General Industry Study Companion — 29 CFR 1910Study companion · 200 questions29 CFR 1910All-accessExplore →
IT & Networking 2 banks · 399 questions
See the IT & Networking track →
16 banks, including study companions, are available now. 2 additional banks are planned and unavailable. Local exam requirements and code editions vary.
A SMALL HABIT. A STRONGER START.
Daily question by email
Make room for one question, one explanation, and a little more confidence.
A BETTER WAY TO PREPARE
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Make the weak spots stronger
Practice one topic at a time. Read the explanation. Find the reference in your code book.
Walk in with a plan
Review flashcards, revisit missed questions, and build a consistent study routine.
WHO IS BEHIND THIS
Built by people who teach the trades.
CodeReady comes from Kilroy's Workshop, an independent trade school founded in 2013 by Ron Hardman, with shops in Colorado Springs, Colorado and McKinney, Texas. The explanations here are written the way an instructor explains them at the bench: the answer, the why, and the code section to go read for yourself.
- Every answer cites the code section or standard behind it.
- Practice by topic, then see which topics still need work.
- Independent study prep. Not an exam board or a licensing body.
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- All available topics in your chosen bank
- Practice, tests & flashcards
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Every available bank and the OSHA companions, with no monthly bill.
- 16 available banks, including study companions
- Future banks when released
- Bank updates; OSHA practice & flashcards only
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All available banks and the OSHA companions while subscribed.
- 16 available banks, including study companions
- Bank updates; OSHA practice & flashcards only
- Cancel through your workbench
USD. Monthly renews automatically until canceled. “Lifetime” means the operating life of CodeReady. Coming-soon banks have no promised release date.
WE’RE IN YOUR CORNER
Retake-access extension
Retake-access extension: monthly subscribers can request one free month of continued access after a documented exam attempt within 60 days. Single-bank and lifetime buyers already retain access; this is not an added benefit for them. Exam fees are not included.
Read the retake policy →GOOD QUESTIONS
Before you get started.
Does this match my local licensing exam?
Electrical, IPC/UPC plumbing, IMC mechanical, and HVAC banks are general practice, not aligned to any specific state exam blueprint. Electrical uses NEC 2023; plumbing offers separate IPC 2021 and UPC 2021 banks. Check the product profile and your official bulletin before purchasing. Explore the UPC 2021 bank →
Is progress synced between devices?
Yes. Study progress follows your login email across devices, with a local browser backup. You can also export and import progress from your workbench. Unfinished practice tests stay on the device where you started them.
Can I preview the questions?
Yes. Each available product page includes three free questions with explanations and references. Planned banks show topics only, with no question or study access.
How do I access my purchase?
You are signed in automatically right after checkout. Later, sign in with your checkout email using a password, Google, or an email link. Your access refreshes from Stripe automatically when you open your workbench.
Does OSHA prep issue an OSHA card?
No. OSHA 10 and OSHA 30 are Outreach training courses, not licensing exams. Our Construction study companions are included with all-access. Not authorized OSHA Outreach training. Does not issue an OSHA card. Cards come only from OSHA-authorized trainers after the required 10 or 30 instructional hours, respectively.
Can I cancel the subscription?
Yes. Use Manage subscription on your workbench. Cancellation takes effect at the end of your paid billing period.
How do I contact CodeReady?
Email admin@codereadyprep.com for access, billing, or content questions. The inbox is monitored daily.