What postulates are mentioned in notice of period of work for adults?

What postulates are mentioned in notice of period of work for adults?

This notice displays:

a. Periods of work for adults for every day during which adult workers may be required to work.

b. Where all the adult workers in a factory are required to work during the same periods, the manager of the factory shall fix those period as general workers.

c. If there is change in system of work, it shall be displayed in notice.

d. The manager of the factory shall classify some workers into groups according to the nature of their work indicating the number of workers in each group.

e. When a work is performed in shift, the notice shall contain the shift arrangement and group who are performing that activity.