(a) Initial period.--Temporary guardianship under this subchapter shall be limited to not more than 90 days from entry of the order of temporary guardianship.
(b) Extension of guardianship.--Upon approval by the court or by written agreement of the temporary guardian and the parent who has entered a rehabilitation facility, temporary guardianship shall be extended for periods of up to 90 additional days.
(c) Total period.--The total period of guardianship under this section shall not exceed 365 days.