Slovakia is divided into 8 ''kraje'' (singular—''kraj'', usually translated as "region"), each of which is named after its principal city. Regions have enjoyed a certain degree of autonomy since 2002. Their self-governing bodies are referred to as Self-governing (or autonomous) Regions (sg. ''samosprávny kraj'', pl. ''samosprávne kraje'') or Upper-Tier Territorial Units (sg. ''vyšší územný celok'', pl. ''vyššie územné celky'', abbr. VÚC).