Section 144-226-3 - ADMINISTRATIONA. The supplier shall not allow a cross-connection at any point within its system unless deemed necessary and approved by the supplier. All parties seeking approval of a cross connection must submit an application for approval to the supplier.B. All connections to a public water system, including connections provided specifically for fire suppression systems, shall be evaluated by the supplier for cross connection potential and degree of hazard.C. All cross connections shall be protected by backflow prevention devices, assemblies, and methods specified in the Maine State Internal Plumbing Code at 02-395 CMR 4.D. The owner shall be responsible for ensuring the proper operation and maintenance of an anti-backflow device and the periodic regular testing of the device as required by the Maine State Internal Plumbing Code or by the public water supplier.E. The supplier shall be responsible for the administration of its cross-connection control program and ensuring that backflow preventers installed for containment purposes are periodically tested as required.10- 144 C.M.R. ch. 226, § 3