Iowa Admin. Code r. 21-62.21
The owner or owner's authorized representative must give immediate notification to the department if the stallion leaves the state. If the stallion leaves the state before August 1 for breeding purposes, the Iowa Stallion Eligibility Certificate will be invalidated. Subsequently, if the owner(s) wishes to return the stallion to service in Iowa, the original application procedure will be required. If an Iowa registered stallion is moved within Iowa to stand at another location, the department must be notified before the stallion is offered for service at the new Iowa location. If an Iowa registered stallion is moved, temporarily, to another state for medication, its certification will remain valid as long as the department is properly notified.
Iowa Admin. Code r. 21-62.21