South Carolina to Wisconsin: journeyman plumber license reciprocity

Wisconsin issues a statewide Journeyman Plumber license through the Department of Safety and Professional Services (DSPS); under Wis. Stat. 145.06 no person may engage in or work at plumbing in the state unless licensed by DSPS, and there is no municipal plumber licensing. Under SPS 305.93 a journeyman works under the general supervision of a Master Plumber, Master Plumber Restricted or Utility Contractor licensee, qualifies by completing a plumbing apprenticeship under Wis. Stat. ch. 106, and must complete 24 hours of approved continuing education to renew. A new applicant files Form 3126 (with the Form 3126T experience table) in the LicensE portal at license.wi.gov, is made eligible to test, and must pass the DSPS journeyman plumber examination, which is a two-part, open-book exam with a 70% passing score covering Wis. Stat. ch. 145, SPS 305, the SPS 381-387 plumbing code, NFPA 13D/24 and the POWTS component manuals (the updated plumbing code applies to exams from October 1, 2026). DSPS's plumber pages name no reciprocity states, and the electrical reciprocity statute (Wis. Stat. 101.874) does not extend to plumbers.

South Carolina has no state journeyman plumber license. The LLR Contractor's Licensing Board licenses mechanical contractors (entities qualified by an individual qualifying party) for mechanical contracting work over $10,000, including the Plumbing (PB) classification confirmed on the Board's Reciprocity/Waiver Agreements list, and the Residential Builders Commission licenses residential specialty contractors for residential work over $500; neither Chapter 11 nor Chapter 59 of Title 40 creates a journeyman or master plumber credential, so a plumber who is not a contractor works under one of those licensees with no state license. The journeyman-level credential that does exist is the trade certification card of the SC Mechanical Trades Certification Program, run since 1965 by the Municipal Association of South Carolina (the association of the state's cities) and, since January 1, 2026, by the Carolinas AGC Foundation; the program's own page says the card is not a license and must not be represented as one. Whether a card is needed depends on the city or county building department. No reciprocity or out-of-state acceptance is published for the journeyman card, so an arriving journeyman plumber should expect to apply to CAGC ($35 application, PROV exam) if a local jurisdiction or employer requires a card.