Any herd owner, auctioneer, cattle dealer or sales manager, who contemplates a complete dispersal sale of a herd or a sale in which more than ten head is to be sold in a group shall furnish a list of animals to be sold to the Commissioner of Agriculture not later than fourteen days prior to the sale, unless the commissioner, in his sole discretion, shall find that this requirement, under existing conditions, would impose undue hardship on the seller, in which case he may waive it. No owner, auctioneer, cattle dealer or sales manager shall conduct a dispersal sale without the approval of the commissioner. The commissioner may, in his discretion, require such herd to be tuberculin or brucellosis tested, or both, before such sale. If such herd has been tested or is tested in accordance with the provisions of this section and is found negative to both tests, or a permit has been issued by the commissioner in accordance with the provisions of section 22-303, permission shall be granted for said sale. These tests shall be applied as private tests if not a routine test assignment. Any person who violates any provision of this section shall be fined not more than one hundred dollars.