License renewal: Licenses must be renewed every two years. How to Apply for the Test: Candidates for the plumbing exam may find the registration form and other information in the following Candidate Information Bulletins: A score of at least 68% is needed to pass the business/law section and a score of at least 67% is needed to pass the trade knowledge section. The trade knowledge section is composed of 65 questions and the section must be completed in 180 minutes. The Business Management and Law section is composed of 50 questions and the candidate is given 120 minutes to complete the first section. Residential - The test is in two parts, the Business Management and Law section and the trade knowledge section. A candidate must get at least 35 answers correct to pass the Business Management and Law section and at least 56 questions correct in the trade knowledge section. The trade knowledge part of the test has 80 questions and the candidate is given 4 hours to complete the test. The Business Management and Law section is composed of 50 questions and the candidate is give 2 hours to complete the test. Test Content: The commercial/mechanical and residential plumber exams have the following specifications:Ĭommercial/Mechanical - The exam has two parts, the Business Management and Law section and the trade knowledge section. The qualifications to sit for the exam may be obtained by contacting the South Carolina Residential Builders Commission. Qualifications to take the Exam and receive a Residential Home Building License: A license for residential home building is required of residential plumbers. Qualifications to take the Exam and receive a Commercial Contractor's License: To sit for the exam, the candidate for the mechanical commercial contractor's license must be able to document 2 years of experience within the last 5 years in the field of plumbing. Procedures for Getting a License: A candidate must take an exam to obtain either a commercial (mechanical) plumbing license or a residential plumbing license. Who Grants a License: The plumbing trade is regulated by the South Carolina Contractor's Licensing Board. A commercial contractor's license is required for projects valued at over $5,000. Need of a License: A commercial and residential plumber needs a license to work in South Carolina.

Whether you live in Columbia, Charleston, Hilton Head or another city or county, the resources below will help you get started:

The South Carolina Plumbing License Exam covers many topics including: Vents & Venting Administrative Procedures Fixtures Drainage Systems and more.

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