Since July 2002, feta has been a protected designation of origin (PDO), which limits the term within the European Union to feta made exclusively of sheep's/goat's milk in Greece.
2002年7月以降、フェタは原産地名称保護制度（PDO）対象となり、欧州連合においてフェタはギリシャ産の羊あるいは山羊の乳で作るものに限定された。