BackflowNear Test-Due Reminder

Becoming a certified backflow tester in Indiana

To be registered under Indiana rule 327 IAC 8-10-11, an applicant must attend 40 hours of education and pass a written and oral examination given by an IDEM-approved training provider.

Sources read October 7, 2026. Each section links the pages it came from.

Getting certified in Indiana

IDEM's Cross Connection Control and Backflow Prevention Manual says Indiana does not recognize backflow testing licenses from other states; testers must take one of the approved 40-hour courses and pass the written and oral exams.

According to IDEM's manual, the Indiana backflow tester license does not expire; testers can verify their license or registration number on the Indiana Professional Licensing Agency website, where the listed expiration date only marks when IDEM next sends its Active list questionnaire.

Source: 40 hours of training plus written and oral exam

Who may test in Indiana

Under Indiana rule 327 IAC 8-10-9, every cross connection control device inspector (backflow tester) must be registered with the IDEM commissioner, must test and calibrate test equipment every year, and must tag each device after testing.

Source: Testers must be registered with IDEM

Approved training courses

IDEM's Cross Connection Control and Backflow Prevention Manual (2016 edition) names four organizations approved to certify backflow device inspectors. To become an Indiana licensed tester, attend one of their 40-hour courses and pass the written and oral exams.

Indiana does not accept other states' backflow licenses. The Indiana license does not expire, but testing equipment must be tested and calibrated every year.

IDEM approved training providers, as printed in the 2016 edition of the IDEM manual.
ProviderCityCourseCostSource
American Backflow Prevention AssociationNot printed40-hour approved course with written and oral examsNot printedin.gov
Indiana School of Backflow and Cross ConnectionNot printed40-hour approved course with written and oral examsNot printedin.gov
Indiana State Pipe Trades AssociationNot printed40-hour approved course with written and oral examsNot printedin.gov
Test Gauge and Backflow SupplyNot printed40-hour approved course with written and oral examsNot printedin.gov

Source: IDEM Cross Connection Control and Backflow Prevention Manual

Common questions

Who certifies backflow testers in Indiana?

IDEM registers backflow testers (cross connection control device inspectors) after 40 hours of training and a written and oral exam from an approved provider.

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