(1) Equine viral arteritis (EVA) is a contagious equine disease. Although typically not life threatening to otherwise healthy adult horses, EVA is of special concern because it can result in abortion in pregnant mares, illness and death in young foals, and establishment of the carrier state in stallions. Equine viral arteritis is a manageable disease that can be prevented through a vaccination program.

(2) If equine test positive for EVA:

(a) The owner of intact males over six months of age and equine reproductive products from donors that test positive for EVA must comply with the United States Department of Agriculture (USDA) Equine Viral Arteritis Uniform Methods and Rules, effective April 19, 2004.

(b) Intact males that test antibody positive for EVA may be subject to quarantine.

(c) Equine semen and embryos from antibody positive donors must be used or implanted only in vaccinated or seropositive mares. These mares must be isolated for twenty-one days following insemination or implantation.