Protection of the Environment Operations (General) Regulation 2009
79S Calculation of cost of monitoring program
(1) During each levy period, the EPA is to calculate an estimate of the cost to the EPA of each of the following for the levy period—(a) the costs of monitoring oxides of nitrogen,(b) the costs of monitoring sulphur dioxide,(c) the costs of monitoring particulate matter,(d) the general program costs.(2) After the end of a levy period, the EPA is to calculate the actual cost to the EPA of each of those matters for the levy period.(3) The EPA may, in respect of any difference between the estimated cost of a matter and the actual cost of that matter—(a) carry forward the difference to a subsequent levy period, or(b) determine arrangements for licence holders to make a payment or receive a refund in respect of that difference.