(a) The records of cattle and/or horse sales, purchases and transactions required by this Part shall be kept and retained in the possession of the permit holder for a period of at least four years after each purchase or sale of any cattle or horses. Record books, together with the entries therein, shall be available for examination by the commissioner or any agent of the United States Department of Agriculture at all reasonable times.

(b) The Department of Agriculture and Markets' record books shall be delivered into the possession of any agent of the Department of Agriculture and Markets of the State of New York or of the United States Department of Agriculture immediately upon request or demand of such agent.