18.—(1) A fee shall be payable by the contracting entity to the supervisory authority for work carried out in Great Britain by or on behalf of the supervisory authority in relation to—
(a)a request by that contracting entity pursuant to—
(i)regulation 14(2) for an authorisation,
(ii)regulation 16(1) for a screening decision, or
(iii)regulation 17(2) for a staged works decision; and
(b)the re-consideration of a—
(i)screening decision pursuant to regulation 16(10), or
(ii)staged works decision pursuant to regulation 17(8).
(2) The fee payable under paragraph (1) shall—
(a)not exceed the sum of the costs reasonably incurred by the supervisory authority in carrying out the work referred to in paragraph (1); and
(b)be payable within 30 days from the date of the invoice that the supervisory authority has sent or given to the person who is required to pay the fees, such invoice to include a statement of the work done and the costs reasonably incurred including the period to which the statement relates.
(3) A fee payable under this regulation shall be recoverable as a civil debt.
(4) Failure to pay a fee under this regulation shall not constitute an offence under these Regulations.
(5) This regulation does not apply to the Intergovernmental Commission in respect of work carried out under regulations 14, 16 and 17 in relation to the Channel Tunnel system.