Canada Hours of Service Rules: Cycles and the 13-Hour Limit

Under Canada's federal Hours of Service rules, a commercial driver south of the 60th parallel can drive a maximum of 13 hours and be on duty a maximum of 14 hours in a day, and must take at least 10 hours of off-duty time in that same day. At least 8 of those 10 off-duty hours have to be consecutive, and a driver cannot drive after accumulating 13 hours of driving or 14 hours of on-duty time until they have taken the required rest. That is the core of the Canadian day, and it is deliberately more generous on driving time than the US rule most cross-border carriers know.

The 'day' itself is defined around a 24-hour period, and the daily off-duty time can be split, but the 8 consecutive hours is the anchor most drivers plan around. Because an ELD calculates all of this automatically from engine and movement data, the practical job for a fleet is making sure the device is set to the correct ruleset and the driver is selecting the right duty status, not doing the arithmetic by hand.

On top of the daily limits, every federally regulated Canadian driver operates under a cycle that caps total on-duty time over a rolling window. Cycle 1 allows up to 70 hours of on-duty time in any 7 consecutive days. Cycle 2 allows up to 120 hours of on-duty time in any 14 consecutive days, which suits longer trips but comes with an extra guardrail: a driver on Cycle 2 cannot drive after accumulating 70 on-duty hours without first taking at least 24 consecutive hours off duty.

Switching between cycles is not something a driver can do mid-week on a whim. To reset and start a new cycle, a driver ends Cycle 1 with at least 36 consecutive hours off duty, or ends Cycle 2 with at least 72 consecutive hours off duty. Until that reset is taken, the accumulated on-duty hours carry forward across the rolling window, which is exactly why fleets running close to the limit lean on the ELD's live cycle counter rather than a driver's memory.

Carriers that run both sides of the border have to keep two rulebooks straight. The US limit is 11 hours of driving inside a 14-hour on-duty window after 10 consecutive hours off, with a mandatory 30-minute break after 8 hours of driving and a 60-hour-in-7-days or 70-hour-in-8-days cycle. Canada allows 13 hours of driving and a 14-hour on-duty window, does not impose the same fixed 30-minute driving break, and uses the 70-in-7 or 120-in-14 cycle structure instead.

The differences are not just numbers on a chart. A load that a driver can legally finish under Canadian rules might push that same driver into a violation the moment the rule set changes, so the cycle and daily math genuinely depends on which country the driving happened in.

A compliant ELD used by a cross-border fleet has to support both the US and Canadian rulesets and apply the correct one for where the driving actually takes place. In practice the device switches the active ruleset when a driver crosses the border so the daily limits and cycle counters reflect the right jurisdiction, rather than applying Canadian limits to US miles or the reverse.

For a fleet, the thing to confirm before running cross-border is straightforward: that the ELD is certified for Canada (Canada maintains its own list of certified devices, separate from the US FMCSA registration process), and that drivers understand their remaining hours can shift the moment the ruleset changes. That is a driver-training point as much as a hardware one, because the device does the calculation but the driver still plans the trip around it.