(a) The board may impose a 9-1-1 emergency service fee on service users in the district.
(b) The fee may be imposed only on the base rate charge or the charge’s equivalent, excluding charges for coin-operated telephone equipment. The fee may not be imposed on:
(1) more than 100 local exchange access lines or the lines’ equivalent for a single business entity at a single location, unless the lines are used by residents of the location; or
(2) any line that the Commission on State Emergency Communications has excluded from the definition of a local exchange access line or equivalent local exchange access line under § 771.063.

(c) If a business service user provides residential facilities, each line that terminates at a residential unit and is a communication link equivalent to a residential local exchange access line shall be charged the 9-1-1 emergency service fee. The fee must have uniform application throughout the district and be imposed in each participating jurisdiction in the district.
(d) The rate of the fee may not exceed six percent of the monthly base rate the principal service supplier in the participating jurisdiction charges a service user.
(e) The board shall set the amount of the fee each year as part of the annual budget. The board shall notify each service supplier of a change in the amount of the fee not later than the 91st day before the date the change takes effect.
(f) In imposing the fee, the board shall attempt to match the district’s revenues to the district’s operating expenditures and to provide reasonable reserves for contingencies and for the purchase and installation of 9-1-1 emergency service equipment. If the revenue received from the fee exceeds the amount of money needed to fund the district, the board by resolution shall reduce the rate of the fee to an amount adequate to fund the district as required by this subsection or suspend the imposition of the fee. If the board suspends the imposition of the fee, the board by resolution may reinstitute the fee if money received by the district is not adequate to fund the district.
(g) For a county or municipality whose governing body at a later date votes to receive 9-1-1 service from the district, the fee is imposed beginning on the date specified by the board. The board may charge the incoming county or municipality an additional amount of money to cover the initial cost of providing 9-1-1 service to that county or municipality. The fee authorized to be charged in a district applies to new territory added to the district under § 772.506(b) when the territory becomes part of the district.