European Union – Greenhouse gas emission. The Court of Justice of the European Union gave a preliminary ruling concerning the validity of certain provisions of Commission Decision 2011/278/EU and Commission Decision 2013/448/EU. The request had been made in proceedings between four operators of greenhouse gas-emitting installations and the Minister for Labour and the Economy, Finland, regarding the legality of the decision adopted by the Minister on the allocation of free greenhouse gas emission allowances for a certain trading period, after the application of the uniform cross-sectoral correction factor provided for in art 10a(5) of Directive (EC) 2003/87, as amended.