California CSLB C-7 — Low Voltage Systems Exam Prep

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Your access starts when you do: the days begin the first time you open the course, not at checkout (or 14 days after purchase, whichever comes first).

Business & Law is 75% off with this classification. Add it only if you want it, for the same term: $24.75 for 30 days, $32.25 for 60 days, $42.25 for 90 days.

Official sitting

California CSLB C-7 Low Voltage Systems exam at a glance

The California CSLB C-7 Low Voltage Systems exam has a time limit of 3 hours 30 minutes, and it is closed book. CSLB also requires a separate Law and Business exam. Figures are from CSLB’s published exam information, checked September 26, 2026.

Time3 hours 30 minutes

Confirm question count, time, open-book rules, and passing score on the live board bulletin before you sit. We do not guarantee a passing result. Source: CSLB C07StudyGuide.pdf (on/after 10/1/2023), checked September 26, 2026. How we source exam facts

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What’s included

18,000+ word study guide

Worked calculations, code-section breakdowns, exam traps, a key-terms glossary and a 30/60/90-day plan.

5 full-length practice exams

Original questions weighted to match the topic mix of the real exam.

500 practice questions

Every one with a written explanation and the code section behind the answer.

Same study guide and four exams on every term. You are choosing how long you can log in.

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What’s on the California CSLB C-7 Low Voltage Systems exam

CSLB’s study guide divides the C-7 exam into seven weighted sections. Job Planning and Design carries the most weight at 18%, and together with Testing and Project Closeout (17%) it makes up 35% of the exam. System Troubleshooting, Repairs, or Replacements is the smallest share at 7%.

California CSLB C-7 Low Voltage Systems exam sections and their share of the exam
SectionShare of exam
Job Planning and Design18%
Material Selection and Estimation15%
Wire/Cable Installation and Termination12%
Systems Configuration and Installation16%
Testing and Project Closeout17%
System Troubleshooting, Repairs, or Replacements7%
Safety15%

The C-7 exam is closed book: no reference materials may be used during the test. Questions are multiple choice with four options, and there is no penalty for guessing, so leave nothing blank.

Source: CSLB Low Voltage Systems (C-7) examination study guide. These weightings are the Board’s own, not our estimate. Contractor Pathway is independent and not affiliated with or endorsed by CSLB.

What this prep covers

  1. 1 Structured Cabling Systems
  2. 11 System Integration
  3. 7 Plenum, Riser, and General-Purpose Requirements
  4. 8 Master Cable Substitution Hierarchy
  5. 9 Abandoned Cables
  6. 4 Fall Protection
  7. 2 Security Systems
  8. 3 Audio/Visual Systems
  9. 5 Voltage Drop Calculations
  10. 6 Cable Distance Limitations Summary
  11. 9 Power Supplies and Battery Backup
  12. 10 Pathway and Raceway Design
  13. 2 NEC Article 725 — Remote-Control, Signaling, and Power-Limited Circuits
  14. 4 NEC Article 800 — Communications Circuits
  15. 4 Nurse Call Systems
  16. 7 Grounding and Bonding for Low Voltage Systems
  17. 5 NEC Article 820 — Community Antenna Television (CATV) and Radio Distribution Systems
  18. 6 NEC Article 830 — Network-Powered Broadband Communications Systems
  19. 5 Permits and Inspections
  20. 3 NEC Article 760 — Fire Alarm Systems
  21. 1 Cal/OSHA Overview
  22. 2 Injury and Illness Prevention Program (IIPP)
  23. 3 Electrical Safety for Low Voltage Work
  24. 5 Confined Spaces
  25. 6 Personal Protective Equipment (PPE)
  26. 7 Trenching and Excavation Safety (8 CCR Section 1539-1542)
  27. 8 Heat Illness Prevention (8 CCR Section 3395)
  28. 1 CSLB Licensing Requirements
  29. 3 Mechanics Lien Law (California Civil Code Sections 8000-9566)
  30. 7 Advertising Requirements (B&P Code Section 7030.5)
  31. 1 Scope of the C-7 License
  32. 2 Contract Requirements
  33. 4 Contractor Financial Requirements
  34. 6 Insurance Requirements
  35. 8 Employee vs. Independent Contractor (AB 5 / Labor Code Section 2775)

Related California CSLB exams

Common questions about this exam

Do I also need the Law and Business exam in California?

Yes. CSLB requires every applicant to pass the separate Law and Business exam in addition to the C-7 trade exam. That exam has 3 hours 30 minutes. California CSLB Law & Business prep is 75% off when you add it to this classification for the same term.

How much practice does this prep include?

It includes 5 full-length practice exams and 500 practice questions in total. Every question has a written explanation naming the code section the answer comes from.

How long is the study guide?

The California CSLB C-7 Low Voltage Systems guide runs to roughly 18,491 words in 35 sections, starting with “1 Structured Cabling Systems” and ending with “8 Employee vs. Independent Contractor (AB 5 / Labor Code Section 2775)”.

How long do I get access?

Choose 30, 60 or 90 days at checkout. Your days do not start at checkout: they begin the first time you open the course (or 14 days after purchase, whichever comes first). Access works on any device, and you can retake every practice exam as often as you like. Days remaining are shown in your dashboard and you can extend at any time.

Is this an official California CSLB C-7 Low Voltage Systems exam?

No. This is independent preparation material. It is not affiliated with or endorsed by any state licensing board or exam vendor, and it does not contain real exam questions. Always confirm current requirements with your licensing board.

About this prep

This prep is built specifically for the C-7 — Low Voltage Systems examination and includes a 18,000+-word study guide written for this exam, 5 full-length practice exams and 500 practice questions, each with a written explanation.

How access works

You are paying for access length (30, 60, or 90 days). The study guide and four timed exams are the same on every term. Your days start the first time you open the course, not at checkout (or 14 days after purchase, whichever comes first), and access works on any device for that term.

Not affiliated with or endorsed by any state licensing board or exam vendor. For exam-preparation purposes only.