N.Y.C. Charter § 492: Section 492. Right of entry of officers of the department.

The commissioner and his deputies and such other officers or employees of the department as are authorized by the commissioner may without fee or hindrance enter and inspect all vessels, premises, grounds, structures, buildings and every part thereof and all underground passages of every sort in the city or in the port of New York for compliance with the provisions of law or rules and regulations enforced by the department. Any refusal to permit such entry or inspection shall be triable by a judge of the New York city criminal court and punishable by not more than thirty days' imprisonment, or by a fine of not more than fifty dollars, or both.