29.—(1) The Executive may charge the operator a fee for the performance of the functions under regulation 13 or 14.
(2) A fee under paragraph (1) may not exceed the sum of the costs reasonably incurred by the Executive in the performance of the functions referred to in that paragraph in relation to the establishment concerned.
(3) A fee may include any costs reasonably incurred by the Executive in arranging for the designated authorities to participate in the testing of the external emergency plan.
(4) A fee is payable within 30 days from the date of the invoice sent by or on behalf of the Executive to the operator.
(5) An invoice shall include a statement of the work done and the costs incurred by or on behalf of the Executive, including the period to which the statement relates.
(6) A fee payable under this regulation is recoverable only as a civil debt.