(a) Upon the application of a person for voluntary admission, or at the time a person admitted under AS 47.30.690 reaches the age of 18, the person shall be given a copy of the following documents which shall be explained as necessary:
- (1) notice of rights as set out in AS 47.30.825 — 47.30.865 and an explanation of any document served upon the person; and
- (2) notice that should the person desire to leave at a time when the treatment facility determines that the person is mentally ill and as a result is likely to cause serious harm to self or others or is gravely disabled, the facility could initiate commitment proceedings against the person.