N.Y.C. Admin. Code § 20-673.3: § 20-673.3 Inspection, investigation; recordkeeping.

a. The commissioner or the commissioner's designee, upon presentation of appropriate credentials, shall be authorized to enter upon or through the business premises of any person who sells or offers for sale gasoline or other petroleum products for use in motor vehicles or motor boats or any place where such gasoline or petroleum products is stored, for the purposes of making inspections, taking samples and conducting tests to determine compliance with the provisions of this subchapter or any rules or regulation promulgated hereunder.

b. Whenever the commissioner has reason to believe that a violation of this subchapter or any rule or regulation has occurred, he or she shall be authorized to make such investigation as he or she shall deem necessary, and to the extent necessary for this purpose, he or she may examine any person and may compel the production of all relevant records.

c. Any person subject to the provisions of this subchapter shall maintain such written records as the commissioner may prescribe by regulation.