Free IN Plumber Exam Prep
Indiana Journeyman Plumber License Exam (PLA / Prov)
Prepare for the IN Plumber exam without spending hundreds on expensive prep courses. Free study guides, practice questions, flashcards, and related exam resources.
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Indiana Plumber License License: Complete Roadmap
Follow this path to organize your licensing and exam preparation
IPC Fundamentals & Drainage SystemsYou are here
Master DFU calculations, building drain and sewer sizing, minimum slopes, and cleanout placement per IPC Chapter 7.
Venting & Isometrics
Study vent sizing, wet and circuit venting, isometric riser diagrams, and developed length calculations per IPC Chapter 9.
Water Supply & Water Heaters
Learn WSFU pipe sizing, backflow prevention assemblies, T&P relief valve rules, and combustion air per IPC Chapters 5 & 6.
Fixtures, Storm Drainage & Indiana Code
Cover fixture rough-ins, storm drainage sizing, 2012 Indiana Amendments (675 IAC 16-1.4), and PLA licensing statutes.
Can You Take the IN Plumber Exam?
Check if you meet the basic eligibility requirements
- •Submit license application to the Indiana Professional Licensing Agency (PLA)
- •Receive examination approval from the Indiana Plumbing Commission
- •Schedule examination through Prov, Inc.
- •Pay $75 examination fee to Prov and $30 license application fee to PLA
IN Plumber Quick Facts
Time to Get Licensed
6-10 weeks for most candidates
From start to license in hand
Exam Provider
Prov, Inc. (computer-based testing at 15 Indiana centers, or remotely through Prov Examroom)
Retake Policy
A candidate who fails may retake the exam up to six more times (seven attempts total) within the eligibility period, paying the $75 fee each time; the last attempt must be no later than two years after the first scheduled date (860 IAC 1-3-2).
Total Cost Breakdown
Free IN Plumber Prep Tools
Reported exam pass rate: Not published by the Indiana Professional Licensing Agency (PLA). These figures describe exam candidates, not OpenExamPrep user outcomes. Check the exam sponsor’s website for published statistics.
130 Practice Questions
IPC-based questions covering all IN plumber exam topics with explanations
AI-Powered Learning
Get instant explanations on drainage, venting, water supply, and storm drainage
2026 Updated
Review current Indiana requirements and IPC code edition
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What You'll Study
14 chapters covering the exam topics in this guide
Chapter 1: Exam Orientation & Trade Mathematics
3 sections
Chapter 2: General Regulations, Structural Safety & Supports
3 sections
Chapter 3: Plumbing Fixtures, Faucets & Accessibility
3 sections
Chapter 4: Traps, Interceptors & Indirect Waste
3 sections
Chapter 5: Sanitary Drainage: Sizing, Slopes & Materials
3 sections
Chapter 6: Sanitary Drainage: Cleanouts, Sumps & Testing
3 sections
Chapter 7: Vents: Principles, Stacks & Terminals
4 sections
Chapter 8: Vents: Advanced Systems & Special Venting
5 sections
Chapter 9: Water Supply: Sizing, Distribution & Materials
4 sections
Chapter 10: Backflow Prevention & Cross-Connection Control
3 sections
Chapter 11: Water Heaters: Sizing, Combustion & Safety
3 sections
Chapter 12: Storm Drainage Systems & Roof Drainage
3 sections
Chapter 13: Developed Length, Isometric Analysis & Offset Math
3 sections
Chapter 14: Indiana Plumbing Laws, Rules, Code Amendments & Business
4 sections
IN Plumber Exam Details
Indiana Journeyman Plumber License Exam (PLA / Prov)
Administered by Indiana Professional Licensing Agency (PLA) / Indiana Plumbing Commission
Exam Content Breakdown
Based on the official Indiana Professional Licensing Agency (PLA) / Indiana Plumbing Commission content outline
Vent sizing, developed lengths, vent terminals, roof penetrations, Indiana frost closure rules, wet venting, circuit venting, combination waste and vent systems, and air admittance valves.
Drainage fixture unit (DFU) values, horizontal fixture branches, building drain and sewer sizing, minimum slopes, cleanout locations, sumps and ejectors, and testing methods.
Water service sizing, water supply fixture units (WSFU), distribution pipe sizing, cross-connection control, backflow prevention devices, pressure regulators, and thermal expansion.
Minimum fixture requirements (Indiana defers to Chapter 29 of the Indiana Building Code), fixture setting and clearances, flushometer valves, scald-prevention shower valves (ASSE 1016/1017), traps, and interceptors.
Reading plumbing isometrics and riser diagrams, calculating developed pipe lengths, fitting allowances, 45-degree offset calculations, and rolling offset geometry.
Piping protection against freezing and corrosion, Indiana Table 305.6.2 county bury depths, trenching and bedding, structural notching and boring limits, and Table 308.5 hanger spacing.
Water heater sizing, locations, temperature and pressure (T&P) relief valves, discharge piping termination, draft hoods, combustion air, and drain pans.
Indiana rainfall rates, projected roof area calculations, vertical conductors, roof drains, horizontal storm drains, and subsoil drainage sump pumps.
Indiana Plumbing Commission statutes (IC 25-28.5), licensing rules (860 IAC), 2012 Indiana Amendments (675 IAC 16-1.4), permits, inspections, and contractor responsibilities.
What's Included
14 Chapters
Complete exam coverage
Practice Quizzes
With detailed explanations
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What's Next After the IN Plumber?
After passing the IN Plumber, you can pursue these career paths
Master Plumber
Advance to Indiana Licensed Plumbing Contractor (Master Plumber) after four years of journeyman experience to pull permits and operate an independent plumbing business.
Plumbing Inspector
Transition into municipal or state building code enforcement, inspecting residential and commercial plumbing systems for compliance with 675 IAC 16.
IN Plumber Exam FAQ
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