The Industrial Pollution Control (Prescribed Processes and Substances) Regulations (Northern Ireland) 1998

Part B

Any of the following processes except where—

(i) the process falls within a description in another section of this schedule;

(ii) the process is related to and carried on as part of another process falling within a description in Part A in any section of this schedule; or

(iii) the operation of the process is unlikely to result in the release into the air of particulate matter—

(a) the grading, screening, crushing, grinding or other size reduction (other than the cutting of stone) of any designated mineral or mineral product other than sand;

(b) the heating of any designated mineral or mineral product.

In this paragraph “designated mineral or mineral product” means—

(i) clay, sand, lignite and any other naturally occurring mineral other than coal;

(ii) metallurgical slag;

(iii) boiler or furnace ash produced from the burning of coal, lignite, coke or any other coal product;

(iv) gypsum which is a by-product of any process.