prescribed

(verb) issue commands or orders for. Synonyms: order, prescribe, dictate.

(adj) set down as a rule or guide.

(adj) fixed or established especially by order or command. Synonyms: appointed, decreed, ordained. Example: "At the time appointed (or the appointed time")."

(adj) conforming to set usage, procedure, or discipline. Synonyms: official. Example: "In prescribed order."

(adj) formally laid down or imposed. Synonyms: positive. Example: "Positive laws."