(a) As used in this section, the following words shall, unless the context clearly requires otherwise, have the following meanings: "Adult", an individual who is older than 22 years of age.
"Awaiting residential disposition", waiting not less than 72 hours to be moved from an acute level of psychiatric care to a less intensive or less restrictive, clinically-appropriate level of psychiatric care.
"Boarding", waiting not less than 12 hours to be placed in an appropriate therapeutic setting after:
(ii) being determined in need of acute psychiatric treatment, crisis stabilization unit placement, community-based acute treatment, intensive community-based acute treatment, continuing care unit placement or post-hospitalization residential placement; and (iii) receiving a determination from a licensed health care provider of medical stability without the need for urgent medical assessment or hospitalization for a physical condition. "Children and adolescents", individuals who are 22 years of age or less.