(3)For the purposes of clause (c) of sub-section (2), employment of an employee is essentially intermittent when it is declared to be so by the appropriate Government on the ground that the daily hours of duty of the employee, or if there be no daily hours of duty as such for the employee, the hours of duty, normally include periods of inaction during which the employee may be on duty but is not called upon to display either physical activity or sustained attention.
