(b) For purposes of this section, the following terms have the following meanings:

1. (1) “Carrier of last resort” means a telephone corporation that is required to fulfill all reasonable requests for service within its service territory.
2. (2) “Rate base” means the value of a telephone corporation’s plant and equipment that is reasonably necessary to provide regulated voice services and access to advanced services, and upon which the telephone corporation is entitled to a fair opportunity to earn a reasonable rate of return.
3. (3) “Rate design” means the mix of end user rates, high-cost support, and other revenue sources that are targeted to provide a fair opportunity to meet the revenue requirement of the telephone corporation.
4. (4) “Rate-of-return regulation” means a regulatory structure whereby the commission establishes a telephone corporation’s revenue requirement, and then fashions a rate design to provide the company a fair opportunity to meet the revenue requirement.
5. (5) “Revenue requirement” means the amount that is necessary for a telephone corporation to recover its reasonable expenses and tax liabilities and earn a reasonable rate of return on its rate base.
6. (6) “Small independent telephone corporations” are rural incumbent local exchange carriers subject to commission regulation.

(c) In administering the CHCF-A program the commission shall do all of the following:

1. (1) Continue to set rates to be charged by the small independent telephone corporations in accordance with Sections 451, 454, 455, and 728.
2. (2) Employ rate-of-return regulation to determine a small independent telephone corporation’s revenue requirement in a manner that provides revenues and earnings sufficient to allow the telephone corporation to deliver safe, reliable, high-quality voice communication service and fulfill its obligations as a carrier of last resort in its service territory, and to afford the telephone corporation a fair opportunity to earn a reasonable return on its investments, attract capital for investment on reasonable terms, and ensure the financial integrity of the telephone corporation.
3. (3) Ensure that rates charged to customers of small independent telephone corporations are just and reasonable and are reasonably comparable to rates charged to customers of urban telephone corporations.
4. (4) Provide universal service rate support from the CHCF-A program to small independent telephone corporations in an amount sufficient to supply the portion of the revenue requirement that cannot reasonably be provided by the customers of each small independent telephone corporation after receipt of federal universal service rate support.
5. (5) Promote customer access to advanced services and deployment of broadband-capable facilities in rural areas that is reasonably comparable to that in urban areas, consistent with national communications policy.
6. (6) Include all reasonable investments necessary to provide for the delivery of high-quality voice communication services and the deployment of broadband-capable facilities in the rate base of small independent telephone corporations.
7. (7) Ensure that support is not excessive so that the burden on all contributors to the CHCF-A program is limited.

(d) In order to participate in the CHCF-A program, a small independent telephone corporation shall meet all of the following requirements:

1. (1) Be subject to rate-of-return regulation.
2. (2) Be subject to the commission’s regulation of telephone corporations pursuant to this division.
3. (3) Be a carrier of last resort in their service territory.
4. (4) Qualify as a rural telephone company under federal law (47 U.S.C. Sec. 153(44)).