Ark. Code § 23-18-409
The Arkansas Public Service Commission shall grant to any person or corporation the right to take and use such power described in this subchapter under the condition that every person or corporation taking and using the power shall pay an annual rental into the State Treasury for the benefit and use of the General Revenue Fund Account of the State Apportionment Fund. This annual rental shall be equal to the rental charged by the Federal Energy Regulatory Commission on such horsepower under its regulations in force at the time the permit is granted by the state. However, if the waterpower is taxable by the federal government under license granted by the Federal Energy Regulatory Commission, no further rental shall be assessed by the Arkansas Public Service Commission.
Ark. Code § 23-18-409