• Login to your Account
  • Only testers approved by the Backflow Compliance Office may access this web site. Login credentials will be DEACTIVATED if testers fail to maintain up to date documentation with the Backflow Compliance Office, including proof of: ODOC backflow tester certification; Columbus Department of Building and Zoning Services registration; Columbus Backflow Compliancce Office registration; and gage calibration within 12 months of test date. Call us at (614) 645-6674 with questions