Connecticut requirements
Source verifiedReviewed Jul 22, 2026
The MDC backflow testing requirements
The MDC administers cross-connection control for its Hartford-area water system and requires owners to maintain approved protection where cross connections may introduce contaminants.
What testers should know
Confirm the current testing and filing route with MDC Utility Services before submitting a report.
Tester requirements: Testing must be completed by a Connecticut-certified backflow prevention device tester.
Important: Utility instructions can change and property-specific requirements may differ. Confirm the accepted form and delivery method before relying on this guide.