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Backflow Base / Tester certification / Mississippi

Backflow tester certification in Mississippi.

MSDH licenses Certified Testers under Mississippi Administrative Code Title 15, Part 20, Subpart 72. Only MSDH-licensed testers may test RP, DC and PVB assemblies.

Last updated .

Who certifies

Mississippi State Department of Health (MSDH), Bureau of Public Water Supply
866-HLTHY4U

The state issues the certificate testers need.

What it takes

Credential
MSDH Certified Backflow Tester license
Training
Tester training must be MSDH-approved; providers submit it at least 45 days ahead. MSDH may let an applicant test without a course in special circumstances, on written request.
Exam
MSDH writes and gives the exam at the end of each approved course: written test (70% minimum) plus performance tests on an RP, a DC and a PVB assembly. Failing either part means retaking an approved course first.
Renewal
Certification expires 3 years after issue. Renewal requires passing an MSDH recertification exam.

Certificates from elsewhere

No other state's certificate is named as valid here. Ask the program before you rely on one.

Compare every state →

Where to get certified

Listed for convenience, not endorsed. Check that a course is on the state's approved list before you pay.

Free exam prep → Study questions, practice exams, device tests.

Test procedures for every assembly → The steps we recommend for the field exam.

Filing test reports

Reports go to the water system serving the property.

Largest water systems

City of Jackson (JXN Water)

City of Gulfport

City of Southaven

City of Olive Branch

City of Hattiesburg

All 979 Mississippi water systems →

Sources

Checked 2026-10-19 against each state's own program pages and rules. Rules change; confirm with the program before you book an exam or a test. Spot something out of date? hello@backflowbase.com.

The software

Contact

hello@backflowbase.com