USADA has banned Armstrong, 41, for life but did say the ban could be reduced to eight years if he cooperated under oath with investigators.
Armstrong's cycling career is long over, but he competed in and won several triathlons in 2012.
Armstrong told Cycling News in late January that he thought a truth and reconciliation commission, run by the World Anti-Doping Agency, was the "only way forward."
At the time he said WADA should run the probe, not the USADA, "This is a global sport, not an American one. One thing I'd add, the (International Cycling Union) has no place at the table."
Since Lance Armstrong's interview with Winfrey, the disgraced cyclist has disappeared from public view.
Once prolific on Twitter, he hasn't tweeted in nearly a month, and his profile page now ends with these words of wisdom: "Met patience in 1996 but only now am I getting to know and appreciate her."