Cycling Australia (CA) has sacked elite men's road coordinator Matt White after he confessed to using performance-enhancing drugs while riding for Lance Armstrong's US Postal team.
White, who had been named in the United States Anti-Doping Agency's (USADA) dossier on Armstrong, made a public statement on Saturday in which he admitted to doping.
CA's board said in a statement on Wednesday that White had made a valuable contribution to cycling in Australia and that his involvement with the national set-up had not gone "against the best interests of the sport".
"However, the admissions contained within his public statement of 13 October clearly place him in breach of the CA Anti-Doping Policy and Code of Conduct," CA added.
"Accordingly, the board has determined that his ongoing employment with CA is untenable and Matt was formally advised overnight of the termination of his contract."
CA also said that while the International Cycling Union (UCI) had made progress in the fight against the use of performance-enhancing drugs, it had "failed to fully and properly do its part to stamp out doping".
"How the UCI responds to the USADA file and how it addresses the allegations within it will be critical to the reputation of the organisation and that of the sport of cycling," it added.
American Armstrong, who won the Tour de France a record seven times from 1999 to 2005, has been stripped of his titles by the USADA after the body accused the 41-year-old of being a central figure in an elaborate doping conspiracy.
White's dismissal by CA comes a day after American cyclist Levi Leipheimer was sacked by Omega Pharma-QuickStep after he admitted to doping while a team-mate of Armstrong.
Leipheimer was one of 11 riders who testified against Armstrong to USADA, who have accused the US Postal Service team of running "the most sophisticated, professionalised and successful doping programme that sport has ever seen".
A statement issued by Omega Pharma-Quick-Step read: "Omega Pharma-QuickStep Cycling Team announces that the contract with Mr Leipheimer has been terminated, effective immediately.
"We commend the rider for his open co-operation with USADA and contribution to cleaning up the sport of cycling. However, in the light of the disclosures made by Mr Leipheimer in his public statement on 10 October, the team has decided to terminate the contract.
"This decision has the full support of the team owner, the board represented by Mr Bessel Kok and team manager Mr Patrick Lefevere."