The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) has prepared an environmental assessment concerning authorization to field test an unlicensed Bursal Disease-Infectious Laryngotracheitis-Marek's Disease Vaccine. The environmental assessment is based on an analysis of the risks associated with the field testing of the veterinary vaccine and examines the potential effects that field testing could have on the human environment. APHIS is accepting public comments through September 29, 2022.