C.R.S. § 35-55-111: Records.

An operator of a public livestock market shall keep on file an accurate record of the date on which a consignment of animals was received and sold, including the name and address of the buyer and seller, the number and species of the animals received and sold, and the marks and brands on each animal. The operator shall make such records, including gross selling prices, commission, and other proper care, handling, and sale charges on each consignment, available for inspection by the executive officer of the state board of stock inspection commissioners, the executive officer's deputy, or an authorized inspector. All records of sales during preceding months shall be kept readily accessible for immediate examination.