In this chapter:
(1) “Commission” means the Health and Human Services Commission.
(2) “Executive commissioner” means the executive commissioner of the Health and Human Services Commission.
(3) “Mental illness” has the meaning assigned by § 571.003, Health and Safety Code.
(4) “Intellectual disability” has the meaning assigned by § 591.003, Health and Safety Code.
(5) “Residential care facility” has the meaning assigned by § 591.003, Health and Safety Code.