Section 144-226-7 - CROSS-CONNECTION CONTROL APPLICATION AND APPROVAL PROCESSA. The supplier shall not allow a cross-connection within the public water system unless deemed necessary and approved by the supplier and protected by an approved backflow-prevention method.B. All cross-connection approval applications should be submitted to the supplier for review and approval.C. Records of cross-connection approvals and devices shall be kept on file with the supplier as long as the cross connection is present and until five years after the cross connection is eliminated. Records of tests for testable cross connection control devices shall be kept on file with the supplier for 5 years after the date of the test. Records must be available for inspection by Department staff.D. It shall be the supplier's responsibility to review the degree of hazard of the cross-connection, assign the proper hazard classification to a specific cross-connection and designate the proper classification on the specific cross-connection application.E. The owner shall apply for the approval of a cross-connection on appropriate forms provided by the supplier and submit said application to the supplier.F. The supplier shall record on the application the degree of hazard (High, Low or Residential) and the determination as to whether or not the cross connection is approved. Cross connections shall be reviewed for re-approval at the discretion of the supplier. Requests for re-approval of a cross connection shall be reviewed by the supplier, and if no changes have occurred, the cross connection shall be automatically renewed. If changes have occurred during any approved period, the cross connection application shall be reviewed by the supplier for a modification to the degree of hazard determination.G. Cross connection approvals shall be non-transferable.10- 144 C.M.R. ch. 226, § 7