Armstrong also alleged the USADA had used heavy-handed tactics to pursue him and that it had even broken the law.
The agency “turned its back on its own rules and stiff-armed those who have tried to persuade USADA to honor its obligations,” he said.
“I refuse to participate in a process that is so one-sided and unfair,” Armstrong added, alleging that from the start the investigation had been “about punishing me at all costs.”
Allegations of doping by Armstrong were made in two books, LA Confidential and L.A. Official.
In 2005, the French magazine L’Equipe reported that retested urine samples from the 1999 Tour de France indicated use of EPO.