official

Conforming to set usage, procedure, or discipline.

Having official authority or sanction.

“official permission”

“an official representative”

(of a church) given official status as a national or state institution.

Verified officially.

“the election returns are now official”

A worker who holds or is invested with an office.

Someone who administers the rules of a game or sport.

“the golfer asked for an official who could give him a ruling”

Of or relating to an office.

“official privileges”