The Utah prairie dog (UPD) was listed as an endangered species in 1973. In 1984, we reclassified the species as threatened and promulgated a special rule under section 4(d) of the Endangered Species Act that allowed regulated take of up to 5,000 nuisance animals annually on agricultural lands in Iron County, Utah. On June 14, 1991, we amended the special rule to allow regulated take of up to 6,000 nuisance animals annually on agricultural lands throughout the species' range. Since the inception of the 4(d) rule, not more than 1,760 UPDs have been taken in any one year, with an annual average of 936. We amended the 4(d) rule to lower the annual take numbers to more accurately reflect the realities of take implemented under the current rule. This amendment is based on the specific numbers of UPDs that are taken annually under the current rule, as well as on pertinent biological literature.