Plumbing Contractor
Scope: Statewide potable water, DWV, and medical gas installs
Testing: Prov exam referencing the 2018 Indiana Plumbing Code, Math formulas, and Title 25 statutes
Indiana spans Lake Michigan dune corrosion, Ohio River floodplains, and Appalachian foothill ice storms. The Professional Licensing Agency expects plumbers, fire-sprinkler firms, and city general contractors to master freeze protection, flood-resistant detailing, and lien law math.
Last verified: May 2026 via Indiana Professional Licensing Agency (IPLA). Official source: Indiana Professional Licensing Agency.
IPLA’s Plumbing Commission, Fire Sprinkler Board, and Electrical Licensing Program regulate statewide trade contractors. Many general contractor licenses remain local (Indianapolis/Marion County, Allen County, etc.). Prov (provexam.com) administers the state plumbing/fire sprinkler exams; some municipalities use PSI or ICC exams.
Northern counties need ICC Exposure C wind design and vapor control for lake-effect snow, while central Indiana deals with expansive clay and 100°F humidity, and the south braces for Ohio River flooding. Expect exam prompts about frost-depth footing insulation, tornado safe rooms, and sump pump redundancy.
Official source: Indiana Professional Licensing Agency
Scope: Statewide potable water, DWV, and medical gas installs
Testing: Prov exam referencing the 2018 Indiana Plumbing Code, Math formulas, and Title 25 statutes
Scope: Water-based suppression systems statewide
Testing: Prov exam covering NFPA 13/14/20 and Indiana Fire Prevention & Building Code
Scope: Commercial/residential structures inside Marion County
Testing: ICC National Standard plus local ordinance review and bonding
State trade contractors must show four years of journeyman-level experience, proof of liability insurance, and bonding (typically $5,000). Municipal GC applicants submit financial statements, $10,000–$30,000 bonds, and ICC pass letters.
Prov operates centers in Indianapolis, Fort Wayne, Evansville, Merrillville, and Bloomington. PSI handles some municipal ICC-based exams.
If you're licensing in a single trade rather than the Indiana general contractor classification, the dedicated trade hub will get you to the right code book and exam structure faster.
Always confirm the exact editions and tab rules in your candidate bulletin before exam day. Editions can change between license cycles.
Consult the All States hub to benchmark multi-state expansion, then confirm fees with IPLA or the local building department.
Indiana blends business law into each trade exam—questions cover Title 25 licensure, Title 32 liens, taxation, and safety.
Practice with our national Business & Law exam hub for cross-state baseline rules.
Indiana has not adopted NASCLA; trade contractors and municipalities require their own exams.
More: National NASCLA exam guide and our in-depth NASCLA Accredited Exam study walkthrough.
Because northern counties need ICC Exposure C wind design and vapor control for lake-effect snow, while central Indiana deals with expansive clay and 100°F humidity, and the south braces for Ohio River flooding, this four-week outline targets what Indiana field inspectors and your licensing board exam items actually test—not generic national prep.
State trade licenses (plumbing, fire sprinkler, electrical) are issued by IPLA; most GC licenses are municipal.
Prov administers statewide trade exams; ICC/PSI handle many municipal GC tests.
No—state and local boards rely on their own exams.
Four years as a journeyman or equivalent with employer affidavits.
Every two years; keep CE certificates and insurance current.
$5,000 for plumbing/fire sprinkler contractors; municipal GC bonds vary by jurisdiction.
Freeze protection, sump sizing, wind loading, and floodproofing across Indiana’s four-season climate.
Use a realistic, Indiana-focused simulator to build timing, confidence, and repeatable passing habits.