(1) A person with capacity may execute a mental health advance directive.
(2) A directive executed in accordance with this chapter is presumed to be valid. The inability to honor one or more provisions of a directive does not affect the validity of the remaining provisions.
(3) A directive may include any provision relating to behavioral health treatment or the care of the principal or the principal's personal affairs. Without limitation, a directive may include:
(a) The principal's preferences and instructions for behavioral health treatment;
(b) Consent to specific types of behavioral health treatment;
(c) Refusal to consent to specific types of behavioral health treatment;
(d) Consent to admission to and retention in a facility for behavioral health treatment for up to 14 days;
(e) Descriptions of situations that may cause the principal to experience a behavioral health crisis;
(f) Suggested alternative responses that may supplement or be in lieu of direct behavioral health treatment, such as treatment approaches from other providers;
(g) Appointment of an agent pursuant to chapter
11.125 RCW to make behavioral health treatment decisions on the principal's behalf, including authorizing the agent to provide consent on the principal's behalf to voluntary admission to inpatient behavioral health treatment; and
(h) The principal's nomination of a guardian or limited guardian as provided in RCW
11.125.080 for consideration by the court if guardianship proceedings are commenced.
(4) A directive may be combined with or be independent of a nomination of a guardian or other durable power of attorney under chapter
11.125 RCW, so long as the processes for each are executed in accordance with its own statutes.