International Olympic Committee President Jacques Rogge on Wednesday urged more countries to implement a UNESCO convention aimed at binding the governments in the fight against doping.

The United States on Monday ratified the International Convention against Doping in Sport, which means more than 90 out of more than 200 members have now signed the pact, according to the UN website.

"I make an appeal to the governments to accelerate the ratification of the UNESCO treaty," Rogge said.

The global convention, adopted in Paris in 2005 at the General Conference of UNESCO and going into force in February last year, bound governments to uphold the World Anti-Doping Code, support, devise or implement anti-doping education and training program and crack down on cross-border doping substance trafficking.

Rogge also called on the national Olympic committees and sports federations to comply with the World Anti-Doping Code when the Belgian spoke on the second day of IOC 120th session by the general assembly.

"I call upon the national Olympic committees and international federations that we meet the deadline of compliance," Rogge said.

China was the first Asian country to sign the treaty in 2006 after the government agreed to abide by the World Anti-Doping Code at the second anti-doping conference in Copenhagen in 2003.

The Chinese capital will host the Olympic Games which sees the toughest doping control in the Olympic history with 4,500 tests to be conducted.

(Xinhua News Agency August 6, 2008)