 As Chinese economic reform has proceeded, the situation has been less clear-cut, as the dang'an system conflicts with market-oriented labour contracts.Graduates have been able to choose their own employment since the mid-1990s in most regions (the latest, Tibet, in 2006), and marriage has not required work unit consent since 2003.Some private companies in prosperous Guangdong do not even require access to the files, which remains with the employee's neighbourhood committee.