|(a) Definitions. Dealer: (1) any person engaged in the business of buying or selling swine in commerce on his own account, as an employee or agent of the vendor, the purchaser, or both, or on a commission basis; (2) shall not include a person who buys or sells swine as part of his own bona fide breeding, feeding, or stocker operations but does include livestock markets and commission merchants. (b) Requirements of dealer recordkeeping. Any dealer, auctioneer, or commission firm must maintain records of swine handled. Such records shall show the seller's and buyer's name and address, county of origin, number of animals, breed, and sex with some form of individual identification numbers. Records at auctions and commission firms shall show the delivery vehicle license number. All dealer records must be maintained for a minimum of two years after the date of the transaction.