Section 171 — Canada Labour Code: Maximum hours of work

An employee may be employed in excess of the standard hours of work but, subject to sections 172, 176 and 177, and to any regulations made pursuant to section 175, the total hours that may be worked by any employee in any week shall not exceed forty-eight hours in a week or such fewer total number of hours as may be prescribed by the regulations as maximum working hours in the industrial establishment in or in connection with the operation of which the employee is employed. Subsection 169(2) applies in the computation of the maximum hours of work in a week prescribed under this section.