N.Y.C. Admin. Code § 17-115: § 17-115 Right of inspection.

It is hereby made the duty of all departments, officers, and agents, having the control, charge or custody of any public structure, work, ground, or erection, or of any plan, description, outline, drawing or charts thereof, or relating thereto, made, kept or controlled under any public authority, to permit and facilitate the examination and inspection, and the making of copies of the same by any officer or person, authorized to do so by the department of health and mental hygiene.