PreambleIn1997,the Council of Europe(CoE)establishedfour expert groups.The groups were to advise the CoE Working Partyon whether,howandto what extentAppendix Aof the Convention ETS123(European Conventionfor theProtection of Vertebrate Animals usedfor Experimental and otherScientific Purposes,1986)needed revision.Main goals of newcommissions:basic laboratory housing should meet the behavioural and physical needs of the animals...the graphs for minimumcage dimensions(figs.1-7Appendix A…