21—64.52 (163) Identification of bovine animals.
	 64.52(1) Identification tag. Every veterinarian, in conjunction with the testing of any bovine animal for brucellosis or the vaccination of any such animal, shall insert an identification tag of the type approved by the department in the right ear of each animal which is not so identified; provided that in the case of an animal registered with a purebred association, the registry or tattoo number assigned to the animal by such association may be used for identification in lieu of an identification tag.
	 64.52(2) Official vaccinates (Defined by law). All official vaccinates must be given an identification tag in the right ear, and in addition must be tattooed or branded in accordance with Iowa Code chapter 164.
	 64.52(3) Reactor identification. Bovine-reactor cattle eight months of age or over shall be permanently branded with a hot iron on the left jaw with the letter “B” not less than two inches nor more than three inches high and shall also be tagged in the left ear with a reactor identification tag approved by the department within 15 days of the date on which they were disclosed as reactors. This subrule shall not apply to official calfhood vaccination as defined in Iowa Code section 164.1. Such vaccinates need not be branded if they react to the brucellosis test until 30 months of age.
This rule is intended to implement Iowa Code sections 164.11 and 164.12.