The Lawless Need Not Apply

Courtesy Craigslist, comes this ad with an oddly specific requirement:
Perform work in accordance with the provisions of the Canada Labour Code and all corporate/departmental policies and procedures related to Occupational Health and Safety.
Weird, eh? The ability to follow the law where it pertains to employment is an actual, stated requirement? Do they have positions where following the law is not a requirement?

Maybe that has something to do with this:
  • 24/7 availability for 12 hour rotating shift work including evenings, weekends and holidays
  • Occasionally required to extend hours of work to meet work demands including occasional peak periods where required to work evenings or weekends.
So, uh, yeah, the regular shifts are 12 hours in length, except when they are longer.

Is that legal?...