N.H. Rev. Stat. Ann. § 38:39

For defraying the cost of acquisition, construction, payment of the interest on any debt incurred, management, maintenance, operation, and repair of broadband infrastructure, or the construction, enlargement, or improvement of such systems, the governing body may establish a scale of rates called access tariffs, may prescribe the manner and the time for the payment of such tariffs, and may change such tariffs when it deems advisable.