Health and Safety at Work etc. Act 1974

6(1)Requiring, in specified circumstances, the appointment (whether in a specified capacity or not) of persons (or persons with specified qualifications or experience, or both) to perform specified functions, and imposing duties or conferring powers on persons appointed (whether in pursuance of the regulations or not) to perform specified functions.E+W+S

(2)Restricting the performance of specified functions to persons possessing specified qualifications or experience.