Some quotes regarding the functioning on Urantia
Vorondadek Most High Observer
[109:7.7] (1201,8) When the planetary Vorondadek observer of Urantia--the Most High custodian who not long since assumed an emergency regency of your world--asserted his authority in the presence of the resident governor general, he began his emergency administration of Urantia with a full staff of his own choosing. He immediately assigned to all his associates and assistants their planetary duties. But he did not choose the three Personalized Adjusters who appeared in his presence the instant he assumed the regency. He did not even know they would thus appear, for they did not so manifest their divine presence at the time of a previous regency. And the Most High regent did not assign service or designate duties for these volunteer Personalized Adjusters. Nevertheless, these three omnipersonal beings were among the most active of the numerous orders of celestial beings then serving on Urantia.
[35:5.6] (390,3) On those worlds segregated in spiritual darkness, those spheres which have, through rebellion and default, suffered planetary isolation, an observer Vorondadek is usually present pending the restoration of normal status. In certain emergencies this Most High observer could exercise absolute and arbitrary authority over every celestial being assigned to that planet. It is of record on Salvington that the Vorondadeks have sometimes exercised such authority as Most High regents of such planets. And this has also been true even of inhabited worlds that were untouched by rebellion.
[43:5.17] (491,13) Every quarantined or isolated world has a Vorondadek Son acting as an observer. He does not participate in planetary administration except when ordered by the Constellation Father to intervene in the affairs of the nations. Actually it is this Most High observer who "rules in the kingdoms of men." Urantia is one of the isolated worlds of Norlatiadek, and a Vorondadek observer has been stationed on the planet ever since the Caligastia betrayal. When Machiventa Melchizedek ministered in semimaterial form on Urantia, he paid respectful homage to the Most High observer then on duty, as it is written, "And Melchizedek, king of Salem, was the priest of the Most High." Melchizedek revealed the relations of this Most High observer to Abraham when he said, "And blessed be the Most High, who has delivered your enemies into your hand.
(1253,4) The sovereignty of Urantia is further complicated by the onetime arbitrary seizure of planetary authority by the government of Norlatiadek shortly after the planetary rebellion. There is still resident on Urantia a Vorondadek Son, an observer for the Most Highs of Edentia and, in the absence of direct action by Michael, trustee of planetary sovereignty. The present Most High observer (and sometime regent) is the twenty-third thus to serve on Urantia.
(1253,7) A Most High observer is empowered, at his discretion, to seize the planetary government in times of grave planetary crises, and it is of record that this has happened thirty-three times in the history of Urantia. At such times the Most High observer functions as the Most High regent, exercising unquestioned authority over all ministers and administrators resident on the planet excepting only the divisional organization of the archangels.