(a) The department shall file an application under § 1101.001 or 1251.003, Estates Code, to be appointed guardian of the person or estate, or both, of a minor referred to the department under § 48.209(a)(1) for guardianship services if the department determines:
(1) that the minor, because of a mental or physical condition, will be substantially unable to provide for the minor’s own food, clothing, or shelter, to care for the minor’s own physical health, or to manage the individual’s own financial affairs when the minor becomes an adult; and
(2) that a less restrictive alternative to guardianship is not available for the minor.
(b) The department shall conduct a thorough assessment of the conditions and circumstances of an elderly person or person with a disability referred to the department under § 48.209(a)(2) for guardianship services to determine whether a guardianship is appropriate for the individual or whether a less restrictive alternative is available for the individual. In determining whether a guardianship is appropriate, the department may consider the resources and funds available to meet the needs of the elderly person or person with a disability. The executive commissioner shall adopt rules for the administration of this subsection.

(c) Subject to Subsection (c-1), if after conducting an assessment of an elderly person or person with a disability under Subsection (b) the department determines that:
(1) guardianship is appropriate for the elderly person or person with a disability, the department shall:
(A) file an application under § 1101.001 or 1251.003, Estates Code, to be appointed guardian of the person or estate, or both, of the individual; or
(B) if the department determines that an alternative person or program described by § 161.102 is available to serve as guardian, refer the individual to that person or program as provided by that section; or
(2) a less restrictive alternative to guardianship is available for the elderly person or person with a disability, the department shall pursue the less restrictive alternative instead of taking an action described by Subdivision (1).
(c-1) Not later than the 70th day after the date the department receives a referral under § 48.209(a)(2) for guardianship services, the department shall make the determination required by Subsection (c) and, if the department determines that guardianship is appropriate and that the department should serve as guardian, file the application to be appointed guardian under § 1101.001 or 1251.003, Estates Code. If the department determines that an alternative person or program described by § 161.102 is available to serve as guardian, the department shall refer the elderly person or person with a disability to that alternative person or program in a manner that would allow the alternative person or program sufficient time to file, not later than the 70th day after the date the department received the referral, an application to be appointed guardian.
(c-2) With the approval of the Department of Family and Protective Services, the department may extend, by not more than 30 days, a period prescribed by Subsection (c-1) if the extension is:
(1) made in good faith, including any extension for a person or program described by § 161.102 that intends to file an application to be appointed guardian; and
(2) in the best interest of the elderly person or person with a disability.
(d) The department may not be required by a court to file an application for guardianship, and except as provided by Subsection (f) and § 1203.108(b), Estates Code, the department may not be appointed as permanent guardian for any individual unless the department files an application to serve or otherwise agrees to serve as the individual’s guardian of the person or estate, or both.
(e) A guardianship created for an individual as a result of an application for guardianship filed under Subsection (a) may not take effect before the individual’s 18th birthday.
(f) On appointment by a probate court under § 1203.108(b), Estates Code, the department shall serve as the successor guardian of the person or estate, or both, of a ward described by that section.