7. F42[(1) Following a calculation by the Commission under Article 8 that results in an additional cost, there shall be a levy in respect of the matters provided for in this Order, which shall be known as the public service obligations levy, and is in this Order referred to as the PSO Levy, which levy shall be estimated, calculated, adjusted, collected, monitored, certified, accounted for and paid in accordance with the provisions of this Order.]

(2) The PSO Levy shall commence on 1 January 2003.

(3) F43[Subject to F44[paragraphs (4) and (5)], F42[the PSO Levy or PSO Payment, as the case may be, imposed by this Article and Article 7A respectively]] shall terminate no later than 31 December 2021.

F45[(4) In respect of the obligation imposed by Article 6D F42[the PSO Levy or PSO Payment, as the case may be, imposed] shall terminate—

(a) in the case of REFIT 1, no later than 31 December 2029,

(b) in the case of REFIT 2, no later than 31 December 2034, and

(c) in the case of REFIT 3, no later than 31 December 2032.]

F46[(5) In respect of the obligation imposed by Article 6E, F42[the PSO Levy or PSO Payment, as the case may be, imposed] shall terminate not later than the end of the period specified in the terms and conditions of the relevant RESS competition.]