MONACO — The IAAF has formally stripped American 400-meter runner Jerome Young of more world championship gold medals for doping.

The International Association of Athletics Federations said Thursday it acted after receiving official notification from USA Track & Field of Young's admission of doping from 1991 through 2003.

Young was banned for life in 2004 and stripped of his Olympic gold medal from the 4x400 relay at the 2000 Games in Sydney for a positive EPO test, his second doping violation.

He accepted more sanctions last year after admitting to using EPO and human growth hormone as far back as 1999. His life ban was back dated to 1999 and all his competitive results since then disqualified.

As a result, the IAAF formally stripped Young of his 400-meter gold from the 2003 World Championships in Paris, and also removed the gold from Young and the U.S. team from the 4x400 relay at the 2003 World Indoor Championships in Birmingham, England. Young's victory at the World Athletics Final in Monaco in 2003 was also annulled.

American runner Tyree Washington now goes into the record books as the 2003 world champion, while Jamaica gets the 2003 world indoor relay gold. Jamaica's Michael Blackwood became the winner of the Monaco event.

Young and the U.S. team had previously been stripped of the 2003 world championship relay gold due to a doping admission by teammate Calvin Harrison.

Young had tested positive for the steroid nandrolone in 1999, but was exonerated by a U.S. appeals panel in 2000. He ran in the opening and semifinal rounds of the relay in Sydney.

The entire U.S. relay team was stripped of the Sydney gold last year after Antonio Pettigrew — who did run in the final — admitted doping.