official, officious

The main meanings of official are 'in the nature of an office' (Their official duties) and 'authorized or confirmed by someone in authority' (The official attendance was over 10,000). By contrast, officious is a judgemental word meaning 'asserting authority aggressively or intrusively', and is most commonly used of a person or the actions of a person:

Officious meter maids checking overparked cars—L. Egan, 1977

He plays the officious, incompetent manager of a dilapidated Irish railway station who comes up against gunrunners—Guardian, 2005.

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