- en fuldstændig ændring på niveau 3, for så vidt angår delstaterne i det tidligere Østtyskland;
­ a complete change at level 3 in the case of the "Lander" of the former East Germany; analytical (or functional) regions are defined according to analytical requirements; they group together zones using geographical criteria (e.g., altitude or type of soil) or using socio­economic criteria (e.g., homogeneity, complementarity or polarity of regional economies).