4. These Regulations do not apply in relation to—
(a)water controlled by the Natural Mineral Water, Spring Water and Bottled Drinking Water Regulations (Northern Ireland) 2007(1);
(b)water that is a medicinal product within the meaning of the Medicines Act 1968(2); or
(c)water used solely for washing a crop after it has been harvested and that does not affect the fitness for human consumption of the crop or of any food or drink derived from the crop.
1968 c. 67 (see section 130) to which there are amendments not relevant to these Regulations