The Veterinary Extension Service programmed a preconditioning program in Iowa with the Iowa Veterinary Medical Association and the Iowa Cattlemen's Association which has been available for Iowa cattlemen for the last ten years and over 600,000 calves are processed through this program annually. The program involves certifying that the calves have been weaned, vaccinated, treated for grubs, wormed and identified with a green tag. A certificate accompanies the calf. Missouri, Tennessee, Kentucky, Ohio, Illinois, Minnesota, South Dakota and North Dakota also have programs underway.