Section 15.29. Involuntary admission on medical certification; notice of admission to residents and others

(a) The director shall cause written notice of a person's  involuntary
  admission  on  an  application  supported by medical certification to be
  given forthwith to the mental hygiene legal service.
    (b) The director shall cause written notice of the admission  of  such
  person,  including  such person's rights under this article, to be given
  personally or by mail not later than five  days,  excluding  Sunday  and
  holidays, after such admission to the following:
    1. the nearest relative of the person alleged to be mentally retarded,
  other  than  the  applicant,  if  there  be any such person known to the
  director.
    2. as many as three additional persons, if designated  in  writing  to
  receive such notice by the person so admitted.