N.Y.C. Admin. Code § 25-320: § 25-320 Investigations and reports.

The commission may make such investigations and studies of matters relating to the protection, enhancement, perpetuation or use of landmarks, interior landmarks, scenic landmarks and historic districts, and to the restoration of landmarks, interior landmarks, scenic landmarks and buildings in historic districts as the commission may, from time to time, deem necessary or appropriate for the effectuation of the purposes of this chapter, and may submit reports and recommendations as to such matters to the mayor and other agencies of the city. In making such investigations and studies, the commission may hold such public hearings as it may deem necessary or appropriate.