If an acquittee is returned to the custody of the Commissioner for inpatient treatment pursuant to revocation proceedings, and his condition improves to the degree that, within 60 days of resumption of custody following the hearing, the acquittee, in the opinion of hospital staff treating the acquittee and the supervising community services board or behavioral health authority, is an appropriate candidate for conditional release, he may be, with the approval of the court, conditionally released as if revocation had not taken place. If treatment is required for longer than 60 days, the acquittee shall be returned to the custody of the Commissioner for a period of hospitalization and treatment which is governed by the provisions of this chapter applicable to committed acquittees.