3.—(1) For the purpose of these Regulations, “best available techniques” means the most effective and advanced stage in the development of activities and their methods of operation which indicates the practical suitability of particular techniques for providing in principle the basis for emission limit values designed to prevent and, where that is not practicable, generally to reduce emissions and the impact on the environment as a whole; and for the purpose of this definition–
(a)“available techniques” means those techniques which have been developed on a scale which allows implementation in the relevant industrial sector, under economically and technically viable conditions, taking into consideration the cost and advantages, whether or not the techniques are used or produced inside the United Kingdom, as long as they are reasonably accessible to the operator;
(b)“best” means, in relation to techniques, the most effective in achieving a high general level of protection of the environment as a whole;
(c)“techniques” includes both the technology used and the way in which the installation is designed, built, maintained, operated and decommissioned.
(2) Schedule 2 shall have effect in relation to the determination of best available techniques.