§ 219. Availability. The basic system herein provided for may be made available for use by any department or division of the state government and by any municipal, county, town, village, railroad or other special police department lawfully maintained by any corporation in this state, subject to the following terms and conditions: (a) application for permission to connect with the basic system shall be made to the superintendent of state police on forms to be provided by him; (b) such application may be approved by the superintendent of state police if, as and when in his discretion such connection is requisite and necessary for the best interests of the entire system; (c) upon approval of such application and before the applicant shall be connected with the basic system, such applicant must agree to assume and pay all rentals for sending and receiving stations or receiving stations only, as may be authorized by the superintendent of state police for installation within the jurisdiction of the applicant, and any and all costs of installation and operation of such stations; (d) the state shall pay all rental for necessary wire or circuit mileage required to connect such stations with the basic system.