第十一条本规定从一九八四年二月一日起实施.Article 11 These Provisions shall go into effect on February 1,1984.新征费率由一九九七年五月二日起实施.The new rate was implemented with effect from May 2, 1997.工资及物价管制已自1975年起实施.Wage and price controls have been in ...