| 30 hours weekly | an adolescent employee up to 16 years |
| 37 and ½ hours weekly | an adolescent employee over 16 years |
| 33 and ½ hours weekly | the working time of an employee who works with proved chemical carcinogens |
| 38 and ¾ hours weekly | if an employee regularly performs work alternately on both shifts of a two-shift operation |
| 37 and ½ hours weekly | if an employee regularly performs work on all shifts of a three-shift operation or a continuous operation |