Cattle could move a little more easily across California's border later this year if the state's bovine tuberculosis (TB) status is upgraded. Since no new cases of the disease have been found since the last infected dairy herd was depopulated two years ago, the state has asked USDA to upgrade its status, effective April 30, to TB-free.

Since the contagious disease was found in three dairy herds in Tulare, Kings and Fresno counties in 2002, the state has tested more than 875,000 animals. Officials traced the source of the disease to cattle imported from out of state.