ยง  463.  Manner  of  authorizing  interlocal agreements. An interlocal
  agreement must be authorized and approved by the governing body  of  the
  contracting  public  agency  of  this  state,  subject  to the following
  requirements:
1.  If  the  same  or  substantially  similar  services,   facilities,
  personnel,  equipment,  other  property  or  resources  may be received,
  obtained, provided or furnished, or the same  or  substantially  similar
  functions  or  activities engaged in or performed under the laws of this
  state by a joint  agreement  or  undertaking  between  or  among  public
  agencies within this state, and if the statutes applicable to such joint
  agreement or undertaking require the holding of a public hearing or make
  it  subject  to  a  referendum,  the  governing board of the contracting
  public agency of this state shall, before  it  approves  the  interlocal
  agreement,  hold a public hearing or provide the same type of referendum
  in substantially the same manner and on substantially  the  same  notice
  provided in such statutes.
2. If the contracting public agency of this state has the authority to
  receive,  obtain,  provide  or furnish the same or substantially similar
  services, facilities, personnel, equipment, other property or resources,
  or to engage in or perform the same or substantially  similar  functions
  or  activities  without  an  interlocal  agreement  only  after a public
  hearing or subject to a referendum, and if the provisions of subdivision
  one of this  section  shall  not  apply,  the  governing  board  of  the
  contracting  public  agency  of this state shall, before it approves the
  interlocal agreement, hold a public hearing or provide the same type  of
  referendum  in  the  same  manner  and on the same notice as though such
  public agency were receiving, obtaining, providing  or  furnishing  such
  services, facilities, personnel, equipment, other property or resources,
  or  engaging  in  or  performing such functions or activities without an
  interlocal agreement.
3.  An  interlocal  agreement  not  covered  by  subdivision  one   or
  subdivision  two  of  this  section  shall  be  approved  only after the
  governing board of the contracting public agency of this state has  held
  a  public  hearing  on  the  interlocal agreement. Notice of such public
  hearing shall be published at least twice in a newspaper having  general
  circulation  in the territory of such contracting public agency not less
  than ten days nor more  than  twenty  days  before  the  day  designated
  therein  for  the hearing. Such notice shall contain a brief description
  in general terms of the interlocal agreement and specify the place where
  and time when the governing board will meet to consider such  interlocal
  agreement and to hear all interested persons.
Structure New York Laws
Article 14-G - Interlocal Agreements With Governmental Units of Other States
462 - Interlocal Agreements Authorized.
463 - Manner of Authorizing Interlocal Agreements.
464 - Appointment of Members of Interlocal Advisory Boards.
465 - Payment of Compensation and Reimbursement for Traveling Expenses.
466 - Contents of Interlocal Agreement.
467 - Appropriation and Raising of Funds.
469 - Approval of Attorney General and Other State Officials.
470 - Reports to and Audit by Comptroller.
471 - Controversy Involving Interlocal Agreement.