In New York State, the Open Government Committee oversees the so-called Sunshine Laws, ensuring that Any New York State or municipal department, board, bureau, division, commission, committee, public authority, public corporation, council, office or other governmental entity performing a governmental or proprietary function is subject to the Law.
When an agency receives a request, §89(3) of the Freedom of Information Law requires that it has five business days to grant or deny access in whole or in part, or if more time is needed, to acknowledge the receipt of the request in writing. The acknowledgement must include an approximate date that indicates when an agency will grant or deny the request. The date must be reasonable under the circumstances of the request, and in most instances, it cannot exceed twenty additional business days. If more than twenty additional business days is needed, the agency must provide an explanation and a date certain within which it will grant or deny the request in whole or in part. That date, too, must be reasonable in consideration of the facts (i.e., the volume or complexity of the request, the need to search for records, or the obligation to review records to determine rights of access).
To learn more about the law, go here: http://www.dos.state.ny.us/coog/freedomfaq.html