9 CFR 2.53 - Use of tags.
Official tags obtained by a dealer, exhibitor, or research facility, shall be applied to dogs or cats in the manner set forth in § 2.50 and in as close to consecutive numerical order as possible. No tag number shall be used to identify more than one animal. No number shall be repeated within a 5-year period.
Title 9 published on 2014-01-01
no entries appear in the Federal Register after this date.