Regulation 4 Duty of operator to provide information about emission levels
The operator of each plant shall monitor the emissions of sulphur dioxide and oxides of nitrogen from the plant in such manner as may be specified by the chief inspector and shall inform the chief inspector in writing—
within one month of the end of each reporting period, of the quantity of each of those substances emitted from the plant in that period,
of the fact that the plant has emitted 95% of its maximum permitted level of emissions in respect of either substance, as soon as that has occurred, and
as soon as practicable, of any change in circumstances relating to energy demand, the availability of fuel or any technical difficulties likely to affect the plant’s operation which might cause the plant to exceed either of its said maximum permitted levels of emission.