In Holland next year combating Infectious Bovine Rhinotracheitis (IBR) and Bovine Viral Diarrhea (BVD) on cattle farms will become a legal obligation from July 1, 2024. Until now control has been voluntary. Last year 53.4 percent of dairy farms participating in the voluntary IBR control program had the IBR-free status, 24.6 percent had the IBR-unsuspected status and 16.5 percent vaccinated. Of the dairy farms participating in the voluntary BVD control program, 85.9 percent had the status of BVD-free or BVD-unsuspected.