If you want a commercial contractor license in South Carolina, the Business Management and Law for Commercial Contractors exam is one of the two tests standing between you and the license. It is administered by PSI, it is open book, and it covers the business side of contracting: estimating, contracts, project management, insurance, labor law, taxes, liens, and environmental rules. This post explains the format, the rules, and what each content area covers.
One scope note up front: this post covers only the Business Management and Law portion. Commercial contractor candidates (except Fire Alarm and Burglar Alarm candidates) must pass this exam plus the applicable technical examination. Everything below describes the Business Management and Law exam unless stated otherwise. For the full licensing path, see how to get a South Carolina contractor license.
The exam at a glance
- 50 scored questions. Every question counts the same.
- 70 percent to pass. That is 35 correct out of 50.
- 125 minutes. That works out to 2 minutes 30 seconds per question.
- Open book. The only permitted reference is the NASCLA Contractors Guide to Business, Law and Project Management, South Carolina Commercial Contractors, 9th Edition.
- $78 PSI fee per attempt.
This is an independent study aid, not affiliated with the SC Department of Labor, Licensing and Regulation (LLR), the Contractor's Licensing Board, or PSI. Verify every detail against the current PSI candidate bulletin and LLR pages before your test date.
The eleven content areas
The official PSI outline divides the 50 questions across eleven areas. The two heaviest areas carry nearly half the exam between them:
Contracts and Agreements (12). The largest area. Contract formation (offer, acceptance, consideration, competent parties, legal purpose), the SC Statute of Frauds (contracts that cannot be performed within one year, sale of goods of $500 or more, and sale of land must be in writing), breach remedies, contract types (lump sum, unit price, cost-plus, design-build), change orders, AIA forms, subcontract flow-down clauses, and termination for convenience versus default.
Estimating and Bidding (10). Quantity takeoffs, unit pricing, overhead, contingency, markup versus margin, bid bonds versus bid deposits, responsive versus responsible bidders, and change-order pricing. Watch for SC-specific payment facts here, including the Prompt Pay Act.
Financial Management (7). Financial statements, the current ratio (2:1 or better is healthy for bonding), quick ratio, cash versus accrual accounting, percentage-of-completion revenue recognition, depreciation, and working capital. The license requirements post covers how this material connects to licensing.
Project Management (5). Critical path method, float, crashing versus fast-tracking, job cost accounting, submittals, and closeout.
Labor Laws and Employment Regulations (3). FLSA overtime, the independent contractor control test, I-9 verification, FMLA, Davis-Bacon prevailing wages, and the SC workers' comp threshold of 4 or more employees.
Tax Laws (3). The 6% SC sales tax rule that treats contractors as consumers of building materials, federal payroll taxes, FUTA, and business entity tax forms.
Liens (3). The SC mechanics lien deadline pair: serve the owner and file the notice within 90 days after last furnishing, and begin enforcement within 180 days. See the lien law post for the full detail.
Business Management (2). The $5,000 commercial licensing threshold, entity forms, and licensing-law penalties.
Insurance and Bonding (2). CGL, workers' comp, the bid/performance/payment bond trio, and builders risk.
Environmental Laws and Regulations (2). SC DES (which replaced DHEC's environmental functions in July 2024), asbestos licensing ($100 per year), and lead, stormwater, and hazardous waste basics.
Safety Recordkeeping and Reporting (1). The smallest area: OSHA 300 log and 300A posting (February 1 to April 30), 5-year retention, 8-hour fatality reporting, and 24-hour hospitalization reporting.
Retakes and registration rules
This exam has unusually generous retake terms: the Business Management and Law exam may be retaken an unlimited number of times within a 12-month period. Do not confuse this with the technical exam rule: commercial technical exams may generally be taken only twice in a 12-month period, then once every six months. That distinction is a classic exam distractor.
Your registration confirmation is valid for one year or until the applicable attempt limit is reached. Each attempt carries the $78 fee. Full fee detail is in the license cost post, the timeline post walks through how retakes fit the overall schedule, and the difficulty post gives an honest read on what the exam demands.
One more exam-day reality: PSI may add 1 to 10 experimental (unscored) questions. They still consume your time, so treat every question as if it counts.
What to bring on exam day
- Your tabbed and highlighted NASCLA South Carolina Commercial Contractors 9th Edition, prepared the way PSI permits.
- Valid identification matching the name on your registration exactly.
- A clear lookup plan. With 2.5 minutes per question, the open-book strategy post explains how to turn the book into a lookup system instead of a reading list.
The numbers worth drilling
Open-book exams reward people who know the key figures cold, because every memorized number is a lookup you skip:
- 50 questions, 35 to pass, 125 minutes, $78.
- 12 contracts, 10 estimating, 7 financial management: the three heavy areas.
- Unlimited retakes in 12 months for this exam; 2 in 12 months, then every 6 months, for technical exams.
- 21/7: the Prompt Pay Act clocks (21 days owner to contractor, 7 days contractor to sub).
- 90/180: the lien-law deadline pair (90 days to serve and file, 180 days to enforce).
- 6%: SC sales tax, paid by the contractor on materials.
- 4+: the workers' comp employee threshold.
- 8/24: OSHA fatality (8 hours) and hospitalization (24 hours) reporting.
- $500: the first administrative offense cap under section 40-11-100; $2,500 per day for continuing violations.
When you work practice questions, notice how many turn on a single figure. That pattern is the exam.
Try the free practice quiz
Want to see where you stand right now? Take the free 12-question South Carolina Commercial Business and Law practice quiz, the scored version with email results, so you can see exactly which topics need work. Start the free quiz
Ready to go deeper? The South Carolina Commercial Business Law Study Guide covers all 150 weighted practice questions across every content area above.