Commission Directives 72/168/EEC of 14 April 1972 on determining the characteristics and minimum conditions for inspecting vegetable varieties and 72/180/EEC of 14 April 1972 determining the characteristics and minimum conditions for examining agricultural varieties have established, with a view to official acceptance of the varieties in the Member States' catalogues, the characteristics to be covered as a minimum by the examinations of the various species, as well as the minimum requirements for carrying out the examinations.
Direktiva Komisije 72/168/EGS z dne 14. aprila 1972 o določitvi lastnosti in minimalnih pogojev za preizkušanje sort zelenjadnic UL L 103, 2. 5. 1972, str. 6. in 72/180/EGS z dne 14. aprila 1972 o določitvi lastnosti in minimalnih pogojev za preizkušanje sort poljščin UL L 108, 8. 5. 1972, str. 8., sta z namenom uradnega vpisa sort v kataloge sort držav članic določili lastnosti, ki jih mora kot minimum vključevati preizkušanje različnih vrst, kot tudi minimalne zahteve za opravljanje teh preizkušanj.