A central element to implement the IPPC-Directive (Council Directive 96/61/EC) consists in the information exchange on an European level on the “Best Available Techniques” BAT for all industrial activities listed in Annex 1 of the Directive. Technical Working Groups (TWG) are set up to facilitate the exchange of information under Article 16.2 of the Directive. The first TWG on large combustion plants (LCP - combustion installations with a rated thermal input exceeding 50 ⁠MW⁠) was held on 24 and 25 February 2000 at the European IPPC Bureau (EIPPCB) in Sevilla. The aim of this working group is the elaborate a Reference Document on BAT (here: ⁠BREF⁠) for this sector.