2006 New York Code - Power Of Parent To Designate A Person In Parental Relation.

 
    §  5-1551. Power of parent to designate a person in parental relation.
  A parent of a minor or incapacitated person may designate another person
  as a person in parental relation to such minor or  incapacitated  person
  pursuant  to  sections  twenty-one  hundred  sixty-four  and twenty-five
  hundred four of the public health law and sections  two  and  thirty-two
  hundred  twelve  of  the  education  law  for a period not exceeding six
  months provided that there is  no  prior  order  of  any  court  in  any
  jurisdiction  currently  in  effect that would prohibit such parent from
  himself or  herself  exercising  the  same  or  similar  authority,  and
  provided  further, that, in the case where a court has ordered that both
  parents must agree on education or health decisions regarding the child,
  a designation pursuant to this subdivision shall  not  be  valid  unless
  both  parents  have  consented thereto. Such designation shall be in the
  form prescribed by section 5-1552 of this title, and may be presented to
  any school, health care provider  or  health  plan  that  requires  such
  designation by either the parent or the designee.