substation; branch office
Commonly used for a local branch of a police station or fire station; also used for other organizational branch offices.
交番の隣に警察の分署があります。
There is a police substation next to the police box.
この地域の消防分署は24時間体制です。
The fire substation in this area operates around the clock.
Compound of 分 (ぶん, 'branch, division') and 署 (しょ, 'office, station').