Subject to paragraph (2) of this subsection, the Administration and the Secretary shall set the fee to be charged for each vehicle to be inspected and tested by a facility. The fee established under this subsection: During the period from May 31, 1997, through June 30, 2025, may not exceed $14; During the period from July 1, 2025, through June 30, 2026, may not exceed $30; and Except as provided in paragraph (4)(iii) of this subsection, during the period after July 1, 2026, shall equal at least the amount in the immediately preceding fiscal year adjusted for inflation in accordance with paragraph (3) of this subsection. During the period after June 30, 2026, the fee established under this subsection shall equal at least the amount in the immediately preceding fiscal year adjusted for inflation in accordance with paragraph (4) of this subsection. The inflation adjustment shall equal the product of multiplying the amount of funding in the immediately preceding fiscal year by the percentage increase in the Consumer Price Index for All Urban Consumers. The percentage increase in the Consumer Price Index for All Urban Consumers shall be determined by comparing the average of the index for the 12 months ending April 30 immediately preceding the fiscal year for which the funding amount is being calculated to the average index for the prior 12 months. If there is a decline or no growth in the Consumer Price Index for All Urban Consumers, the fee amount under this paragraph shall remain unchanged. The fee shall be collected in a manner established by the Administration and the Secretary. A specific portion of the fee shall be paid to or retained by the Administration to cover the cost of administration and enforcement of the emissions control program, as provided in the contract between the contractor and the State.