- What the AL-GC Trade Exam Actually Tests
- Registration, Fees, and Eligibility Mechanics
- Domain-by-Domain Breakdown
- Exam Format, Open-Book Rules, and Timing
- A Study Timeline Built Around the Domains
- Open-Book Strategy: What to Tab and Highlight
- Common Mistakes That Sink First Attempts
- Who Hires AL-GC Licensees
- Frequently Asked Questions
- The AL-GC trade exam has 115 questions, runs 5 hours 30 minutes, and requires a raw score of 81 to pass.
- Procurement and Contracting Requirements is the largest of the 12 domains - prioritize it in your study plan.
- The exam is open book, computer administered, and allows a silent nonprinting nonprogrammable calculator.
- Eligibility lasts one year with unlimited attempts, but each PSI seat still costs $106.
What the AL-GC Trade Exam Actually Tests
The Alabama Building Construction (Commercial) General Contractor Trade Exam, commonly shortened to AL-GC, is the trade knowledge portion of licensure overseen by the Alabama Licensing Board for General Contractors. PSI administers it as the NASCLA Accredited Examination for Commercial General Building Contractors, which Alabama accepts for the Building Construction (Commercial) classification. This is not a generic contracting quiz - it's a scenario-driven exam covering the full lifecycle of a commercial building project, from sitework and structural systems through finishes and contract administration.
If you're just starting to research the credential, our overview of what AL-GC actually is and the plain-language breakdown of the AL-GC meaning are good starting points before you dive into study logistics. For a one-page reference once you're deep into review, bookmark the AL-GC cheat sheet.
Registration, Fees, and Eligibility Mechanics
Before you can sit for the trade exam, the Board requires a full application package, not just a testing fee. Understanding this sequence matters because it affects how you schedule your study time.
- Board approval and prime application fee: $300, paid before you're cleared to test.
- Qualifying party designation: the individual whose exam scores and experience qualify the license.
- Secretary of State registration: your business entity must be registered in Alabama.
- Liability insurance: required as part of the application file.
- Financial statement: a current CPA or approved-accountant statement showing at least $10,000 in both net worth and working capital, with no deficits.
- Project documentation: at least three relevant commercial projects.
- References: three qualified references attesting to your experience.
- Alabama Business and Law exam: a separate exam required alongside the trade exam.
Once approved, eligibility lasts one year, during which you get unlimited attempts at the $106 trade exam fee per sitting. Prime licenses then renew annually for $200. For the full itemized cost picture across application, exam, and renewal fees, see the AL-GC certification cost breakdown, and for a checklist-style walkthrough of every prerequisite, read the dedicated AL-GC requirements guide.
Key Takeaway
Because eligibility runs a full year with unlimited attempts, don't rush an underprepared first sitting just to "get it over with." A failed attempt still costs $106 and burns study momentum - use the window to prepare properly instead.
Domain-by-Domain Breakdown
The trade exam draws from 12 domains that mirror how a commercial building actually goes together, followed by the business layer that wraps the project. Knowing which domains carry the most weight - and which topics inside them repeat - is the single biggest lever for passing on attempt one. For a full narrative treatment of each domain with study angles, see the complete AL-GC exam domains guide.
Domain 12: Procurement and Contracting Requirements
This is the largest domain on the exam, and it deserves the largest share of your study calendar. It covers bidding procedures, contract types, bonding, change orders, and the documentation trail that ties a commercial project together legally and financially.
- Bid solicitation, award, and contract award sequencing
- Payment and performance bond mechanics
- Change order and claims documentation
Domain 1: General Requirements
Covers project administration basics: submittals, project meetings, temporary facilities, and general conditions language that shows up across nearly every other domain's scenario questions.
- Submittal review cycles and RFIs
- Temporary utilities and site safety provisions
Domain 2: Site Construction
Focuses on earthwork, excavation support, utilities, and site prep sequencing before vertical construction begins.
- Soil classification and excavation shoring
- Site utility coordination and staging
Domains 3-6: Concrete, Masonry, Metals, Wood
These structural-systems domains test material properties, connection details, and sequencing logic - expect questions built around specification tolerances and inspection points rather than pure definitions.
- Concrete curing, reinforcement placement, and formwork
- Masonry mortar types and reinforcing requirements
- Structural steel connections and metal fabrication basics
- Wood framing systems and fastening schedules
Domains 7-9: Thermal/Moisture, Doors/Windows/Glazing, Finishes
The envelope and finish domains test how systems interact - waterproofing details at penetrations, glazing performance requirements, and finish schedules coordinated with other trades.
- Roofing and waterproofing assembly logic
- Door, window, and glazing performance ratings
- Finish schedules and material compatibility
Domains 10-11: Mechanical and Plumbing Systems, Electrical Systems
You are not expected to design these systems, but you must understand coordination points: rough-in sequencing, code-driven clearances, and how a general contractor schedules subcontractor work around MEP milestones.
- Rough-in and inspection sequencing
- Coordination between structural and MEP trades
If you want a sense of how tough this domain spread feels in practice compared to other trade licensing exams, our analysis on how hard the AL-GC exam really is breaks down the difficulty by content type rather than guesswork.
Exam Format, Open-Book Rules, and Timing
The trade exam is computer administered at a PSI test center, contains 115 questions, and gives you 5 hours 30 minutes to finish - roughly 2.8 minutes per question if the time were spread evenly, though open-book lookups will eat more time on unfamiliar items. It is open book, meaning you may bring approved reference materials, and a silent, nonprinting, nonprogrammable calculator is permitted.
One detail candidates frequently overlook: the exam may include up to 10 unscored experimental questions mixed in with the scored items, and these count against your time limit even though they don't count toward your score. You won't know which questions are experimental, so treat every question with equal seriousness rather than trying to guess which ones "don't matter."
| Exam Detail | Specification |
|---|---|
| Total questions | 115 |
| Time allowed | 5 hours 30 minutes |
| Passing score | Raw score of 81 |
| Format | Computer administered, open book |
| Calculator policy | Silent, nonprinting, nonprogrammable only |
| Experimental items | Up to 10 unscored, included in time limit |
| Exam fee | $106 per attempt |
For the exact math behind that raw score of 81 - including how it's calculated against the 115-question total - see the dedicated AL-GC passing score guide. If you're still mapping out when you can sit for the exam relative to your application approval, the AL-GC exam dates and scheduling guide covers how PSI testing windows work.
A Study Timeline Built Around the Domains
Generic study advice - spaced repetition, timed practice blocks - only helps if it's mapped to which AL-GC domains actually move the needle. Because Procurement and Contracting Requirements is the largest domain, it should anchor your final review weeks rather than being an afterthought.
Structural Systems Foundation
- Work through Domains 3-6 (Concrete, Masonry, Metals, Wood) since they build on each other
- Build a reference tab system in your open-book materials for connection details and tolerances
Envelope, MEP Coordination, and Site Work
- Cover Domains 2, 7, 8, 9 for site construction, thermal/moisture, openings, and finishes
- Study Domains 10-11 with a coordination lens - sequencing and clearances, not system design
Procurement, Contracting, and General Requirements
- Spend extra time on Domain 12 given its weighting, drilling bid, bond, and change-order scenarios
- Layer in Domain 1 general conditions language, which overlaps heavily with Domain 12 questions
Full-Length Timed Review
- Run a full 115-question, 5.5-hour practice session to calibrate pacing against the real clock
- Rebuild your open-book tab index based on where you slowed down most
For deeper practice under realistic timing and question style, the exam simulator on our practice test platform mirrors the 115-question, open-book format so pacing surprises don't happen on exam day.
Open-Book Strategy: What to Tab and Highlight
Open-book status is often misread as "less studying required." In practice, an unorganized reference set costs you more time than it saves across a 115-question exam. Treat your allowed materials like a lookup index, not a crutch.
- Tab by domain, not by chapter. Align your reference tabs to the 12 domains above so you can jump directly to Procurement and Contracting Requirements or Concrete without flipping pages mid-question.
- Pre-highlight formulas and thresholds. Anything involving load calculations, bond percentages, or code clearances should be pre-marked before test day.
- Practice retrieval speed, not just content. During prep, time how long it takes you to locate an answer in your reference material - slow retrieval under a 5.5-hour clock compounds quickly across 115 questions.
Common Mistakes That Sink First Attempts
Most first-attempt failures on the AL-GC trade exam trace back to a handful of avoidable patterns rather than a fundamental knowledge gap.
- Underweighting Procurement and Contracting Requirements. Candidates with strong field experience in concrete or framing sometimes assume the business-and-contracts material is "easy," then run out of review time before mastering it - despite it being the largest domain.
- Treating the calculator rules loosely. Bringing a programmable or printing calculator can create problems at check-in; confirm your device is silent, nonprinting, and nonprogrammable well before test day.
- Skipping the application sequence timeline. Because the Board approval, $300 prime application fee, financial statement, and references all precede scheduling, candidates who wait until the last minute on paperwork lose study time to logistics instead.
- Ignoring the Alabama Business and Law exam. This separate exam is easy to deprioritize while focused on trade content, but it's a required companion, not an optional add-on.
- Not simulating the full 5.5-hour session. Fatigue management across 115 questions is its own skill; practicing only in short bursts leaves candidates unprepared for the back half of the exam.
For a data-informed look at how these mistakes translate into outcomes, see the AL-GC pass rate analysis, and if you're weighing whether the licensure investment makes sense for your career stage, the AL-GC ROI analysis lays out the tradeoffs.
Who Hires AL-GC Licensees
Because Alabama licensure under this classification is tied to commercial projects of $100,000 or more, the credential is most relevant to contractors bidding institutional, retail, industrial, and larger commercial build-outs - not small residential remodels. Qualifying parties who hold this license are typically the individuals whose name and exam scores anchor a firm's ability to legally bid and contract at that project scale in Alabama.
If you're evaluating career paths around this license, the AL-GC jobs overview and AL-GC salary guide outline where licensed qualifying parties typically fit within contracting firms, and AL-GC training resources can help you build domain knowledge before you're ready for full practice exams on the main practice test platform.
Key Takeaway
This license exists specifically to gatekeep larger commercial work in Alabama. Study material that only covers small-scale residential scenarios won't match what the 115-question exam actually asks.
Frequently Asked Questions
The exam contains 115 questions and allows 5 hours 30 minutes to complete, administered by PSI on computer.
You need a raw score of 81 to pass. See the AL-GC passing score guide for a full explanation of how that score is derived.
Yes. It's open book and computer administered, and you may use a silent, nonprinting, nonprogrammable calculator during the test.
Procurement and Contracting Requirements is the largest domain on the exam, so it should get a proportionally larger share of your study time compared to the other 11 domains.
Your eligibility window lasts one year with unlimited attempts, but each sitting costs $106, so it's worth reviewing weak domains before rescheduling rather than retesting immediately.
Passing the AL-GC trade exam on the first attempt comes down to matching your preparation to the exam's actual structure: 115 questions, a 5.5-hour open-book format, and a domain weighting that favors procurement and contracting knowledge as heavily as technical trade content. Build your review calendar around those specifics rather than generic exam prep, and the paperwork, timing, and content requirements stop feeling like separate hurdles and start functioning as one coordinated plan.