Updated for current South Carolina LLR and PSI requirements
Start by choosing residential-only or commercial electrical contracting. South Carolina uses different boards, application orders, experience rules, exams, and NEC editions for the two routes.
Use this guide to choose the correct license, avoid registering in the wrong order, and prepare with the references listed in the current PSI bulletin.
The short version: your South Carolina electrical license path
First, choose residential or commercial
Residential Electrician
- For residential electrical work exceeding $500
- Covers qualifying residential structures up to 3 stories and 16 units
- Apply to the Residential Builders Commission before scheduling PSI
- Pass Residential Electrical and Residential Business Management and Law
Commercial Electrical Contractor
- For regulated commercial electrical work above $10,000
- Electrical is a Mechanical Contractor classification
- The business designates a Primary Qualifying Party (PQP)
- Pass the Electrician technical exam and Commercial Business Management and Law
Residential route: apply before PSI
Submit the Residential Electrician application and instructions with the required experience records. The current packet calls for W-2s and/or 1099s plus a Residential Electrician Experience Affidavit from each employer or supervisor used to verify your experience.
After the Commission approves you, PSI eligibility is valid for 1 year. You must pass both required exams during that period. Read the current SC Residential Builders PSI bulletin before buying books or scheduling.
| Residential exam | Questions | Time | Passing score | Primary NEC edition |
|---|---|---|---|---|
| SC Residential Electrical | 60 | 180 minutes | 44 correct | 2017 NEC |
| Residential Business Management and Law | 50 | 120 minutes | 34 correct | SC business-law reference |
| NASCLA Residential Electrical alternative | 100 | 270 minutes | 70 correct | 2020 or 2023 NEC, plus the full NASCLA reference list |
SC Residential Electrical question mix
- General electrical knowledge: 13
- Services, feeders, and branch circuits: 15
- Overcurrent protection: 5
- Grounding and bonding: 6
- Conductors and cables: 5
- Raceways and boxes: 4
- Lighting: 4
- Specialty applications: 4
- Safety: 4
Schedule an approved residential exam through PSI →
Commercial route: exams come before the license application
South Carolina does not require Board preapproval before the commercial PSI exams. The PQP first passes the required exams, then the business submits its license application, financial statement or surety bond, PQP materials, experience documentation, and pass sheets.
Use the current PQP/QP instructions and the current SC Commercial Contractor PSI bulletin. The PQP generally needs at least 2 years of full-time work experience performed within the past 5 years in the Electrical classification.
| Commercial exam | Questions | Time | Passing score | Current fee |
|---|---|---|---|---|
| SC Electrician | 80 | 300 minutes | 56 correct | $75 |
| Commercial Business Management and Law | 50 | 125 minutes | 35 correct | $75 |
| NASCLA Electrical alternative | 100 | 270 minutes | 75 correct | $116 |
SC Commercial Electrician question mix
- General electrical knowledge: 9
- Services, feeders, and branch circuits: 9
- Grounding and bonding: 9
- Conductors and cables: 9
- Raceways and boxes: 9
- Special occupancies and equipment: 2
- Electrical power: 7
- Motors: 7
- Low voltage: 2
- Lighting: 5
- Illuminated signs: 2
- Fire detection and alarm systems: 2
- Safety information: 8
Register for the commercial exams through PSI →
Prepare with the right books
For the commercial exam, buy the standard 2020 NFPA 70 / National Electrical Code sold by JCR. South Carolina does not publish a special combined NEC exam book; separately download and study the official South Carolina modifications and bring the other references listed in the current PSI bulletin. Bring the exact approved titles and editions; PSI does not supply them.
- Commercial approved references and exam rules
- Residential approved references and exam rules
- Permanent NFPA 70/72 tabs - removable tabs are not allowed
Choose the JCR prep that matches your exam
SC commercial Electrician exam
JCR's South Carolina prep is built around the 2020 NEC used on this technical exam. Choose a class or the dedicated self-study course.
SC residential or NASCLA exam
The SC residential state exam uses the 2017 NEC. NASCLA uses a different and much larger reference list. Check your exact PSI bulletin before choosing a JCR course.
Waivers, group limits, and renewal
Exam waivers and reciprocity
Another state license does not automatically transfer. Residential and commercial applicants use different waiver rules, and the business-law exam can still be required. Check the Residential Electrician waiver rules or the commercial Board's current Technical Exam Waiver Agreement List before paying for an exam.
Commercial license group limits
The commercial license's bid and job limit is based on the financial statement or surety bond submitted with the application. Review the current group-limit table on the Contractor's Licensing Board licensure page.
Renewal
Renew through the board that issued the license. Check the Residential Builders Commission renewal page or the Contractor's Licensing Board renewal page for the current deadline, fee, bond, and financial-document requirements.
Your next move
If you are residential-only, download the application packet and start collecting employer records before scheduling anything. If you are pursuing the commercial Electrical classification, confirm the PQP experience and financial requirements, then schedule the correct technical and business-law exams.
Official sources to check before applying or testing
Reviewed August 2026. Licensing requirements, exam references, fees, and links can change; confirm the current LLR and PSI materials before applying or testing.