2006 New York Code - Application.

 
    § 402. Application.  The  rules  and procedures for display and use of
  the flag set forth in this article shall govern the display of the  flag
  on  all  public  buildings  within  the  state  and  shall supersede any
  contrary rule or custom of state or  local  agencies  governing  display
  provided,  however, a school district may promulgate its own regulations
  to allow the flag to be flown at half-staff to commemorate the death  of
  a  present  or  former board member, present employee, teacher, student,
  clerk or custodian.