What is the 16 hour rule in Canada?

What is 16 hour rule in Canada refers to work hours rule for commercial truck drivers under Hours of Service regulations. 16 hour rule in Canada, officially part of Commercial Vehicle Drivers Hours of Service Regulations under Motor Vehicle Transport Act, administered by Transport Canada and provincial authorities, states that commercial truck driver must have 8 consecutive hours off duty after being on duty for 16 hours, with 16 hour rule being that driver cannot drive after 16 hours of on duty time in a day, where on duty includes driving and other work like loading and waiting, with 16 hour window starting when driver starts duty, and driver must take 8 consecutive hours off duty after 16 hours on duty, with daily driving limit of 13 hours and on duty limit of 14 hours in 16 hour window, with rule applying to federally regulated commercial vehicle drivers operating vehicles over 4,500 kg, with 16 hour rule ensuring driver has adequate rest, with violations resulting in fines and out of service. For example, if driver starts duty at 6am, 16 hour window ends at 10pm, during which driver can drive up to 13 hours and be on duty up to 14 hours, then must take 8 hours off. So 16 hour rule in Canada is Hours of Service rule for commercial truck drivers that driver must take 8 consecutive hours off duty after 16 hours on duty, with daily driving limit 13 hours within 16 hour window, to ensure rest and safety.