Leit í EES-gagnagrunni
Council Directive 91/156/EEC of 18 March 1991 amending Directive 75/442/EEC on waste
Council Directive 91/271/EEC of 21 May 1991 concerning urban waste-water treatment
Council Directive 91/250/EEC of 14 May 1991 on the legal protection of computer programs
Council Directive 91/676/EEC of 12 December 1991 concerning the protection of waters against pollution caused by nitrates from agricultural sources
Council Directive 91/692/EEC of 23 December 1991 standardizing and rationalizing reports on the implementation of certain Directives relating to the environment