Canada's Commercial Vehicle Drivers Hours of Service Regulations govern how long a driver can operate a commercial vehicle and how much rest they must take. For Alberta drivers and fleet managers, understanding the HOS rules isn't just about legal compliance — it's about operating safely on roads where fatigue-related incidents have catastrophic consequences.
The Two Cycles: Cycle 1 and Cycle 2
Canadian HOS regulations offer drivers a choice between two work cycles. Cycle 1 allows a maximum of 70 hours of on-duty time in any 7 consecutive days, followed by a mandatory 36-hour off-duty reset. Cycle 2 allows a maximum of 120 hours of on-duty time in any 14 consecutive days, followed by a mandatory 72-hour off-duty reset. Most Alberta oilfield carriers operate under Cycle 2, which better suits the variable shift patterns common in energy sector logistics.
Within each cycle, daily driving limits apply regardless of which cycle a driver uses: a maximum of 13 hours of driving time in a 24-hour period, after which the driver must take at least 8 consecutive hours off-duty before driving again. Total on-duty time in a day (driving plus other work) cannot exceed 14 hours without an intervening 8-hour off-duty period.
Canadian HOS Quick Reference
- Maximum 13 hours driving per day
- Maximum 14 hours on-duty per day without 8-hour break
- Cycle 1: 70 hours / 7 days, reset with 36-hour off-duty
- Cycle 2: 120 hours / 14 days, reset with 72-hour off-duty
- Mandatory 10-minute break after 2 hours of driving (or 30 min off-duty)
- ELD required for most federally-regulated carriers as of Jan 2023
- Log must be current to the last change of duty status
Electronic Logging Devices (ELDs): The 2023 Mandate
Transport Canada's ELD mandate came into full effect in January 2023, requiring federally-regulated carriers to use certified electronic logging devices in vehicles operated under federal HOS rules. For Alberta carriers operating interprovincially — which includes most oilfield carriers moving equipment between Alberta and BC, Saskatchewan, or cross-border — ELDs replaced paper logs for most operations.
Exempt from the ELD mandate are: vehicles manufactured before 2000, drivers operating under the 160km exemption (within 160km of their home terminal), and certain agricultural operations. For everyone else, a paper logbook in a federally-regulated truck is now a compliance violation, not just an audit concern.
From the Fleet Manager's Perspective: The ELD transition created short-term pain for some of our drivers who had been managing logs manually for years. The long-term benefit is accuracy — ELDs record engine-on time automatically, which protects drivers from being pressured into falsifying logs. We've found that ELDs also make dispatch planning easier because we have real-time visibility into available hours.
The 160km Exemption and When It Applies
Drivers operating within 160km of their home terminal and who return to their home terminal at the end of each work shift may use a simplified log — or in some cases no log at all, depending on the provincial rules that apply. This exemption is commonly used by carriers doing local delivery, urban construction, and some oilfield service work within a defined radius.
The critical point about the 160km exemption is that it applies to the distance from the home terminal, not the driving distance of the trip. If a driver's home terminal is in Calgary, they can operate without a full HOS log anywhere within 160km of that terminal — which includes most of southern Alberta. But the exemption doesn't apply once they cross the 160km boundary, at which point full HOS documentation is required for the entire shift.
Fatigue and the 2-Hour Rule
One of the less-discussed provisions in the Canadian HOS regulations is the mandatory break requirement: drivers must take a break of at least 10 minutes after every 2 hours of driving. The break can be recorded as off-duty or as on-duty (not driving), but it must happen. This rule is separate from the daily driving limit — a driver can take their 2-hour breaks and still drive up to 13 hours, provided the other cycle limits aren't exceeded.
In practice, the 2-hour rule is often overlooked on long-haul runs where drivers are trying to make time. Enforcement is concentrated around roadside inspection programs, and failing to show compliant break intervals during an inspection is a common violation. More importantly, the research on fatigue is unambiguous — a 10-minute break every two hours measurably improves alertness and reaction time.
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