--- title: "Do You Have to Pass the Law and Business Exam for a C-10?" description: "Yes — every CSLB C-10 applicant must pass the Law and Business exam in addition to the electrical trade exam. Here is why, what it covers, and how it is scored." url: https://caelectricalprep.com/blog/do-you-need-law-and-business-exam-c10 published: 2026-07-26 topic: "Exam" language: en license: "Free to read and quote with attribution to CA Electrical Prep (https://caelectricalprep.com)." source_of_truth: "2025 California Electrical Code (Title 24, Part 3), which adopts the 2023 NEC with California amendments." --- # Do You Have to Pass the Law and Business Exam for a C-10? Yes — every CSLB C-10 applicant must pass the Law and Business exam in addition to the electrical trade exam. Here is why, what it covers, and how it is scored. ## Key points - Yes — passing the Law and Business exam is mandatory for a C-10; there is no way to skip it or test out with experience. - It is the same exam every CSLB classification takes, because every contractor runs a business. - You can take it the same day as the trade exam or separately; you re-sit only the exam you fail. - It covers contracts, lien law, employment and payroll, bonds and insurance, safety, and licensing law. - Trade-strong electricians fail it most often by treating it as an afterthought instead of new material. Short answer: **yes.** Every applicant for a California C-10 electrical contractor license must pass the Law and Business exam in addition to the C-10 electrical trade exam. There is no way to skip it, test out of it, or substitute experience for it. Here is why it exists, what it covers, and how it is scored. This explains the process to help you plan; confirm current rules with the CSLB at [cslb.ca.gov](https://www.cslb.ca.gov). ## Why it is required The Contractors State License Board (CSLB) does not just license people who can do the work — it licenses people to *run a contracting business*. The Law and Business exam is how the state confirms you understand the legal and financial side: contracts, payment, employees, insurance, and the licensing law itself. Because every contractor runs a business, **the same Law and Business exam applies to every classification**, from a C-10 electrician to a general B contractor. See [how the two C-10 exams differ](/blog/c10-trade-vs-law-business-exam) for the full comparison. ## Can experience or education waive it? No. Your years of journey-level electrical experience qualify you to *sit* for the exams — they are part of the [C-10 license requirements](/blog/c10-license-requirements-california) — but they do not exempt you from either test. Everyone takes both. ## Do you take them on the same day? Often, but not always. The CSLB schedules you after approving your application. Many candidates sit both on one day; some split them. **If you pass one and fail the other, you only re-take the one you failed** (there is a re-exam fee). Your license will not issue until both are passed. The [exam format and passing score guide](/blog/c10-exam-format-passing-score) covers the mechanics. ## What the Law and Business exam covers Broadly: contract law, business finance and bookkeeping, employment and [payroll and workers' comp rules](/blog/payroll-workers-comp-c10-contractors), [mechanics liens and preliminary notices](/blog/mechanics-lien-electrical-contractors-california), bonds and insurance, safety administration, and licensing law. The [full Law and Business exam guide](/blog/law-and-business-exam-guide) breaks down each area. ## Why people fail it Skilled electricians underestimate it. They pour their study time into the trade calculations — familiar territory — and treat the Law and Business exam as an afterthought. Then they meet lien deadlines and contract rules they have never dealt with and run out of time. The fix is simple: study it as genuinely new material, not review. ## The bottom line You cannot get a C-10 without passing the Law and Business exam. Plan for it, study it seriously, and do not let the unfamiliar half of the license be the reason you re-test. A prep course that covers **both** exams keeps you from neglecting the one that trips up the most candidates. ## Questions and answers ### Is the Law and Business exam required for a C-10 license? Yes. Every C-10 applicant must pass the Law and Business exam in addition to the C-10 electrical trade exam. There is no exemption based on experience or education. ### Can I skip the Law and Business exam with enough experience? No. Experience qualifies you to sit for the exams, but everyone still has to pass both the Law and Business exam and the trade exam. ### Do I take both C-10 exams on the same day? Often, but not always. The CSLB schedules you after approving your application. If you pass one and fail the other, you only re-take the one you failed. ### What does the Law and Business exam cover? Contract law, business finance, employment and payroll, workers comp, mechanics liens, bonds and insurance, safety, and licensing law — the legal and financial side of running a contracting business. --- Canonical HTML version: https://caelectricalprep.com/blog/do-you-need-law-and-business-exam-c10 More: https://caelectricalprep.com/llms.txt