New auto export rules will take effect March 1 to ensure that only big and credible automakers play a role in China's push to become a major power in the global vehicle market, AFP reported. A statement posted on the website of the Ministry of Commerce announced the new moves but gave no further details. The licensing system will weed out auto makers that are too small to compete internationally, according to state media, which also quoted unsourced statistics showing that some 1,025 Chinese enterprises were involved in vehicle exports in 2005. More than 600 of these exported less than 10 vehicles in the course of the entire year, while another 160 exported just one automobile each. The announcement came as the government released trade data showing Chinese vehicle exports almost doubled last year to 340,000 vehicles.