Idaho Public Works Contractor Exam

Idaho Public Works Contractor Exam: Complete 2026 Study Guide

You've built the skills. Now it's time to get the license. The Idaho Public Works Contractor Exam is the final step between you and the legal authority to take on public works projects in Idaho — and passing it opens doors to government contracts, larger job opportunities, and serious credibility in the state's construction market. This guide covers everything you need to know: exam format, topic breakdowns, study materials, and the strategies that actually move the needle. If you're serious about Idaho Public Works exam prep, you're in the right place.

Idaho Public Works Contractor Exam Overview

The exam is administered by PSI and consists of 100 scored questions. You get 240 minutes (4 hours) to complete it — that's a generous window, but the material is dense, so don't count on coasting. The passing score is 70, meaning you need to answer at least 70 questions correctly.

The exam fee is $75.00, and that fee is valid for one year from the date of payment. Fees are non-refundable and non-transferable, so plan your test date carefully.

One thing that sets this exam apart: it's open book. The only reference material allowed is the Division of Occupational & Professional Licenses Contractor's Business and Law Reference Manual. Here's the catch — it must be printed, hole-punched, and placed in a three-ring loose-leaf binder before you arrive. Pre-exam highlighting, underlining, and permanent indexing are allowed. Writing during the exam session is not. Post-its and loose papers will be confiscated. Plan accordingly.

You can register online or by phone through PSI at the exam registration page. Check the official exam bulletin and the state licensing website for the latest requirements.

Topics Covered on the Idaho Public Works License Exam

The exam draws from 13 sections of the Contractor's Business and Law Reference Manual. Here's where to focus your energy, ranked by how heavily each section is tested:

• Section 5 – Financial Management (20 items): Financial statements, accounting methods, revenue recognition, financial ratios, and depreciation. This is one of three sections worth 20 points each — don't skip it.
• Section 6 – Labor Laws and Employment (20 items): Federal anti-discrimination laws, FLSA wage and hour rules, and federal contractor labor obligations. Expect specific details about employee thresholds and protected classes.
• Section 7 – Insurance and Bonds (20 items): Types of contractor insurance, workers' comp in Idaho, surety bonds, and the Miller Act. Heavy on specifics — know your bond types cold.
• Section 10 – Project Management (10 items): CPM calculations, Gantt charts, float/slack time, and project personnel roles.
• Section 9 – Contracts (8 items): Valid contract elements, contract types, Idaho retention rules, and the Statute of Frauds.
• Section 8 – Estimating and Bidding (7 items): Bid types, estimating methods, and quantity takeoffs.
• Section 11 – OSHA and Safety (5 items): OSHA recordkeeping forms, reporting requirements, and federal construction safety regulations.
• Sections 2, 3, 4, and 6 – Business Organization, DOPL, and Law (2 items each): Business structures, registration, licensing requirements, and working with CPAs and attorneys.
• Sections 1, 12, and 13 – Business Planning, Taxes, and Liens (1–2 items each): Smaller in weight but still fair game.

The three big sections — 5, 6, and 7 — account for 60 out of 100 exam points. Master those first.

Sample Idaho Public Works Exam Questions

Here are a few examples of the types of questions you'll encounter. See if you can work through them — then try our free practice exam to test yourself on more.

Question 1:
A contractor is completing a large federal public works project. Which bond guarantees that subcontractors and suppliers will be paid for their work and materials?

• A) Bid bond
• B) Performance bond
• C) Payment bond
• D) License bond

This question tests your knowledge of surety bond types from Section 7 — a heavily weighted area on the exam.

Question 2:
Under the percentage-of-completion method, when is revenue recognized on a long-term construction contract?

• A) When the contract is signed
• B) When the project is fully complete
• C) Proportionally as work is performed
• D) Only when payment is received

This is a Section 5 financial accounting question — exactly the kind of calculation-adjacent concept you should be able to apply, not just memorize.

Question 3:
An Idaho contractor fails to file a mechanic's lien within the required time period after completing work. What is the result?

• A) The lien is valid but reduced in priority
• B) The contractor may request a 30-day extension from the court
• C) The right to file the lien is forfeited
• D) The lien automatically converts to a judgment

Section 13 covers lien filing timelines and enforcement — a procedural area where knowing the exact rules matters.

What Types of Questions to Expect

Here's a topic-by-topic look at the kinds of skills tested — and how many practice questions we've built for each area:

• Section 1 – Business Planning (23 practice questions): Questions on business plan components, executive summaries, and Idaho-specific startup checklists.
• Section 2 – Starting a Contractor Business (25 practice questions): Business organization methods, selecting CPAs and attorneys, and required insurance types.
• Section 3 – Business Structures in Idaho (11 practice questions): Sole proprietorships, partnerships, LLCs, S corps, C corps — liability differences and Idaho Secretary of State filing requirements.
• Section 4 – DOPL and Licensing (6 practice questions): DOPL's regulatory role, license application process, and consequences of unlicensed work.
• Section 5 – Financial Management (72 practice questions): Balance sheets, income statements, cash flow, ratio analysis, MACRS depreciation, and revenue recognition methods.
• Section 6 – Labor Laws (60 practice questions): ADEA, ADA, Title VII, FLSA exemptions, Davis-Bacon Act requirements, and federal contractor obligations.
• Section 7 – Insurance and Bonds (74 practice questions): General liability, builder's risk, workers' comp, unemployment insurance, bid/performance/payment bonds, and the Miller Act.
• Section 8 – Estimating and Bidding (29 practice questions): Open vs. closed bids, conceptual vs. detailed estimates, quantity surveys, and labor/material pricing.
• Section 9 – Contracts (32 practice questions): Contract formation elements, lump sum vs. cost-plus structures, Idaho retention limits, and written agreement requirements.
• Section 10 – Project Management (54 practice questions): CPM network diagrams, float calculations, Gantt chart reading, and the five phases of project management.
• Section 11 – OSHA Safety (23 practice questions): OSHA Forms 300/300A/301, recordable vs. non-recordable incidents, fatality reporting timelines, and workplace poster rules.
• Section 12 – Taxes (18 practice questions): Idaho sales and use tax, independent contractor classification, withholding requirements, and recordkeeping periods.
• Section 13 – Mechanic's Liens (14 practice questions): Lien eligibility, the 90-day filing rule, priority ranking, the 6-month enforcement window, and releasing a lien via surety bond.

We offer 441 total practice questions across all 13 sections.

Study Materials for the Idaho Public Works Exam

Required Reference Manual

The Division of Occupational & Professional Licenses Contractor's Business and Law Reference Manual is the only resource allowed during the exam — and it's also your primary study tool. Download it from DOPL's website and print the entire thing. Once printed, hole-punch it and organize it in a three-ring binder.

This isn't optional prep; the physical format is a hard exam requirement. Candidates who arrive without a properly prepared binder cannot use their reference during the test.

Recommended: Highlighters

Because the exam is open book, the quality of your prep directly affects how fast you can find answers under pressure. A well-highlighted, tabbed manual is worth more than hours of additional reading.

Pick up a set of Sharpie Tank Highlighters — they resist smearing, come in multiple colors, and the wide barrel gives you a consistent line across pages. Using different colors by section (e.g., yellow for financial terms, pink for legal definitions) makes scanning fast and reliable during the exam.

Study Tips That Actually Work

Tab your manual before anything else. On an open-book exam, speed finding answers is what separates passing from failing. Study the table of contents and index until you can land on any topic in seconds. That efficiency is a skill — practice it.

Don't just read — practice questions. Reading the manual cover to cover builds familiarity, but the exam rewards recognition of how questions are phrased and how answer choices are designed to mislead. Work through as many practice questions as you can under timed conditions. Start with our free practice exam to get a feel for the format, then upgrade to the full practice exam for a complete 100-question simulation with topic-by-topic scoring.

Focus your study time where the points are. Sections 5, 6, and 7 together make up 60% of the exam. If your study time is limited, those three sections should get the bulk of it.

Manage exam anxiety deliberately. Some nerves before a big test are normal — don't fight them. If you feel stuck on a question, pause, take a few slow breaths, and reset. If your testing center allows a short break, use it. Just remember: the clock typically keeps running.

Highlight strategically, not compulsively. Too much highlighting is just as useless as none. Mark key definitions, specific numbers (thresholds, deadlines, dollar amounts), and anything that appears on multiple practice questions.

Frequently Asked Questions

How much does the Idaho Public Works Contractor Exam cost?
The exam fee is $75.00 per attempt. Fees are non-refundable and non-transferable, and each payment is valid for one year from the date of payment. If you need to retake the exam, you'll pay the full $75.00 again.

How many questions are on the exam and how long do I have?
The exam has 100 questions, and you're given 240 minutes (4 hours) to complete it.

What is the passing score?
You need a minimum score of 70 — meaning 70 correct answers out of 100.

How do I register?
You can register online 24 hours a day through the exam registration page, or call PSI directly at 855-340-3713 during their listed hours of operation.

Is the exam open book?
Yes. The only allowed reference is the DOPL Contractor's Business and Law Reference Manual — printed, hole-punched, and in a three-ring binder. No other materials are permitted.

Can I write in my reference manual during the exam?
No. Pre-exam highlighting and permanent indexing are fine, but no writing is allowed during the exam session. Post-its and loose papers will be confiscated. Any candidate caught writing in their references may have their binder seized and be reported to the Division.

What if I fail — can I retake it?
Yes. You can retake the exam as many times as needed. Each attempt requires a new $75.00 fee.

What ID do I need to bring?
One government-issued, current photo ID with your name, signature, and photograph — such as a driver's license, U.S. passport, military ID, or alien registration card. Temporary IDs are only accepted if accompanied by the original expired ID.

What if I need to cancel my appointment?
You can cancel and reschedule without losing your fee if PSI receives your cancellation at least 2 days before your scheduled exam date. You must cancel directly through PSI — by phone or online. Voicemail and email are not accepted.

Where can I take the exam?
PSI testing centers in Idaho (Boise, Lewiston, Moscow, Twin Falls, Idaho Falls, and others), plus locations in Washington, Oregon, Wyoming, and Nevada. Additional PSI centers across the U.S. are also available.

Ready to Pass?

The Idaho public works license exam is thorough, but it's absolutely achievable with the right prep. Print your manual, tab it well, and practice until the material feels routine. Start by taking our free practice exam today — no account required, no payment needed — and see where you stand. When you're ready to go deeper, the full practice exam gives you a true simulation with 100 questions, a 4-hour timer, and a detailed breakdown showing exactly where to focus before test day. You've done the hard work in the field. Now get the license to prove it.