communications network, established under subtitle A of title III of the PROTECT Act ( 34 U.S.C. 20501 et seq. ), and any other State alert networks, to maximize the efficiency of all such alert systems, and to prevent overuse or improper activations of such networks. 4. Green alert coordinator (a) National coordinator within department of justice The Attorney General shall designate an individual of the Department of Justice to act as the national coordinator of the Green Alert communications network. The individual so designated shall be known as the Green Alert Coordinator of the Department of Justice (referred to in this Act as the Coordinator ). (b) Duties of the coordinator In acting as the national coordinator of the Green Alert communications network, the Coordinator shall— (1) work with States and Tribal governments to encourage the development of additional Green Alert plans in the network