2006 New York Code - Authorization To Participate.

 
    §  119-k.  Authorization to participate. Before any municipality shall
  participate in a joint  project  pursuant  to  this  article,  it  shall
  authorize  such  participation by taking the same procedural steps which
  it would  be  required  to  take  if  it  proposed  to  effectuate  such
  improvements   itself.   Other   municipalities   may  be  permitted  to
  participate in the joint project by making a lump  sum  contribution  in
  such amount and such manner as the original participating municipalities
  may determine.