Such an examination may be declared compulsory for certain categories of employees (article 17c of the Labour Act). Also compulsory is the regular medical examination of employees who always perform night work.
如果雇员夜班工作时间加长，他们有权接受体检和指导，对于某些工种的雇员，这种体检可能是强制性的（《劳动法》第十七（c）条）。