olemus
Wiktionary:
any form of government whose remit covers an area less than that of the nation and, in some cases, less than that of a state

ülevaateid
https://en.wikipedia.org/wiki/Local_government

https://www.ccre.org/docs/Local_and_Regional_Government_in_Europe.EN.pdf

https://www.riigiteataja.ee/en/eli/502012017004/consolide

https://www.jstor.org/stable/j.ctv941qjd