license

license

免許、許可証

(noun) Official or legal permission to do or own a specified thing. See Synonyms at permission.
(noun) A document, plate, or tag that is issued as proof of official or legal permission: a driver's license.
(noun) Deviation from normal rules, practices, or methods in order to achieve a certain end or effect.
(noun) Latitude of action, especially in behavior or speech. See Synonyms at freedom.
(noun) Lack of due restraint; excessive freedom: "When liberty becomes license, dictatorship is near” ( Will Durant).

This license is the highest level granted by the society, and while no hierarchy should be inferred (all referees are equal regardless of classification), this is (to my knowledge) only the fifth, sixth or seventh individual to meet the criteria for the license*.