From February 1, passengers with nothing to declare will not need to fill out entry-exit declaration forms when going through Customs at China's airports, the General Administration of Customs (GAC) announced.

The new measure is aimed at improving speed and efficiency ahead of the increase in passenger traffic expected during the 2008 Beijing Olympics and 2010 World Expo in Shanghai.

Only passengers with something to declare need submit forms when going through the "red channel."

The new declaration form also combines the former import and export declaration forms into one.