(a)  with  the approval of the legislative body of the county in which
each  affected  district  is  located,  combine  two  or  more   primary
registration districts into a single primary registration district; or,
  (b)  divide one primary registration district into two or more primary
registration districts; or,
  (c) establish any state hospital, charitable or penal institution as a
primary registration district.
  3. Whenever a county or part-county primary registration district  has
been established or two or more primary registration districts have been
combined,  the  records  of birth and death and all papers pertaining to
such records in the possession  of  the  original  primary  registration
district   or   districts  shall  be  transferred  as  directed  by  the
commissioner.
Structure New York Laws
Title 2 - Registration Districts: Registrars, Physicians, Midwives and Funeral Directors
4120 - Vital Statistics; Registration Districts; Establishment.
4121 - Vital Statistics; Registrar; Qualifications and Appointment.
4122 - Vital Statistics; Deputy Registrars and Subregistrars; Appointment.
4123 - Vital Statistics; Registrars; Term of Office; Oath; Removal.
4124 - Vital Statistics; Registrars and Subregistrars; Compensation and Expenses.