Some re-vamped commercial trains used for testing purposes are not designated as CITs and have standard serial numbers appended with a "J" (e.g. CRH380AJ).The CIT001 was ordered by the China Academy of Railway Science on 2 April 2007 and was co-designed by CARS and CNR.The train is painted with yellow and white striped livery and started test runs on 1 July 2007.Formation CRH2A-2010 (formerly CRH2-010A) is the first high-speed test train in China and the first CRH2 trainset manufactured by CSR Sifang.On February 23, 2011, the CRH400A-001 arrived at CARS; after a series of modifications to rectify problems that occurred during testing, the trainset was set to enter service on March 3,[needs update?]Formation On December 7, 2010, during the 7th World High-speed Rail Conference held in Beijing, an officer from the CSR Group confirmed that China would perform a high-speed test in 2011 in an attempt to break the then current speed record of 574.8 km/h (357.2 mph) achieved by French trainset V150.