Confirmed EIA positive equine will be permanently identified by lip tattooing or branding with a hot iron, chemical brand, or freeze brand. A lip tattoo is applied to the inside surface of the upper lip and consists of the numbers 91 followed by the letter A, with each character being at least one inch high and three-fourths of an inch wide. A brand is applied on the left side of the neck or left shoulder and consists of the numbers 91 followed by the letter A, with each character being at least two inches high. Permanent identification will be applied by state or federal animal health authorities.