Indiana Plumbing Exam

The Indiana Plumbing License Exam covers many topics including: Vents & Venting; Administrative Procedures; Fixtures; Drainage Systems and more.  Whether you live in Indianapolis, Gary, South Bend or another city or county, the resources below will help you get started:

Need of a License:  Journeyman plumbers and plumbing contractors need a license to work in Indiana.

Who Grants a License:  Plumbing licenses are issued by the Indiana Plumbing Commission.

Procedures for Getting a License:   A candidate for a journeyman plumbing license or a plumbing contractor license must take and pass an exam.   Detailed information about the test is provided in a examination information bulletin.

Qualifications to take the Exam and receive a License:  A candidate for the journeyman plumbing license must have at least 4 years of training and successfully passed a practical exam in an approved apprenticeship program.  A candidate for the contractor license must have at least 4 years of experience working under a licensed plumbing contactor.

Test Content:   The journeyman and contractor exam consists of 90 multiple choice questions and there is a 3 hour time limit.  The test will cover the following general areas with a corresponding number of questions:

     General Requirements - 7

     Fixtures - 10

     Water Heaters - 7

     Water Supply Distribution - 14

     Sanitary Drainage - 21

     Vents - 17

     Developed Length/Isometric Analysis - 8

     Indiana Business and Law - 6

Who Administers the Test:  International Code Council

How to Apply for the Test:  You can access the application online. 

Mail the completed application to:

     Indiana Plumbing Commission

     402 W. Washington St., Room W072

     Indianapolis, IN 46204

Fees:  There are fees to take the test.

License Renewal:  Licenses must be renewed every two years.   There is a continuing education requirement.

Applicable Code:    Indiana uses the Indiana Plumbing Code and adopted the Uniform Plumbing Code developed by the International Association of Plumbing and Mechanical Officials.


For more information on licensing and exam preparation, go to's

Journeyman Plumbing Test Guide

Master Plumbing Test Guide

And take's Plumbing Practice Test.

For plumbing exam preparation products and services, such as study guides, practice tests, flashcards and courses, go to's Journeyman Plumber Exam and Master Plumber Exam listings.