Kerley won gold in the 100 meters at the 2022 World Championships, along with the men’s 4×100 meters titles in 2019 and 2023.
He also reached the 100 meters podium in the last two Olympic Games, winning silver in Tokyo 2020 and bronze in Paris 2024.
“Given this level of experience and having been a member of the evidence group since 2017, the Court said Kerley should have taken more care,” an AIU statement said.
AIU director Brett Clothier said: “Unfortunately, sophisticated doping substances may be detectable in an athlete’s sample for only a few days or even hours after administration.
“Anti-doping organizations must be able to test athletes without prior notice on a day and time of our choosing, otherwise anti-doping programs will not work and doped people will easily avoid detection. Tracing rules are therefore fundamental to the integrity of the sport and must be respected.
“The AIU will continue to strictly enforce location requirements to protect all athletes’ right to fair competition.”
Kerley, who last competed in the Grand Sprint Series in Norwalk, California, in July 2025, became the first American track athlete and male to enter the controversial Enhanced Games in September.
He did not dispute his whereabouts error on June 13, but blamed technical problems with the United States Anti-Doping Agency (Usada) application for a failed test on May 11, and the Doping Control Officer (DCO) for missed tests on December 6 and 7.
This decision may be appealed to the Court of Arbitration for Sports (Cas).