Several of China’s basic laws were first passed “for trial implementation” (试行). The Environmental Protection Law (for Trial Implementation) was adopted in principle in September 1979. A final Environmental Protection Law followed in December 1989. The Civil Procedure Law (for Trial Implementation) took effect on October 1, 1982, and was replaced by a new Civil Procedure Law in 1991.
The Enterprise Bankruptcy Law (for Trial Implementation) of December 1986 lasted longest. It was repealed when the new Enterprise Bankruptcy Law took effect on June 1, 2007.