Liu Jingmin, executive vice-president of the BOCOG, inked the letters on behalf of the organizing committee with heads of all BOCOG departments during a meeting restating necessity and importance of anti-corruption while preparing for the Games.

"We promised a clean Olympic Games free of corruption when we won the bid. Now the department heads have signed the letters of responsibility, which is their commitment to prevent corruption within the BOCOG," Liu said.

According to the agreement, heads of the departments will be held responsible if wrongdoing such as breaching anti-corruption regulation, embezzlement or corruption occurs.

Beijing Olympics will kick off on August 8, 2008 in the most populous country.