Canada’s federal hours of service rules cap commercial driving at 13 hours per day within a 14-hour on-duty limit and a 16-hour elapsed-time window, require 10 hours off-duty each day (8 of them in a single unbroken block), and track cumulative work on either a 70-hour/7-day or 120-hour/14-day cycle. The rules sit in the Commercial Vehicle Drivers Hours of Service Regulations (SOR/2005-313) and apply to carriers and drivers operating across provincial or international borders.1Justice Laws Website. Commercial Vehicle Drivers Hours of Service Regulations Compliance is recorded automatically on a certified electronic logging device.
Who the Rules Apply To
The regulations cover two categories of commercial vehicle: trucks, tractors, and trailers with a registered gross vehicle weight above 4,500 kilograms, and buses built to seat more than 10 people including the driver.1Justice Laws Website. Commercial Vehicle Drivers Hours of Service Regulations If your vehicle fits either description and you operate across a provincial or national border, federal HOS rules govern the trip. For-hire carriers and private fleets are both covered, and the obligation extends to employees, contractors, and owner-operators regardless of payroll classification.
Drivers of personal vehicles or smaller commercial vehicles below these thresholds are generally outside federal HOS oversight. The carrier is responsible for knowing which vehicles in its fleet trigger the rules; at a roadside inspection, a misidentified vehicle is treated the same as a violation.
Short-Haul Local Operations
Drivers who stay within a 160-kilometre radius of their home terminal and start and end each shift at the same location can qualify for a short-haul exemption from daily log requirements. The underlying driving and rest limits still apply, and the carrier must maintain accurate time records at the terminal even when the driver isn’t keeping a personal log.
Daily Driving and On-Duty Limits
Two hard caps govern every working day. A driver cannot accumulate more than 13 hours of driving time, and total on-duty time cannot exceed 14 hours.2Justice Laws Website. Commercial Vehicle Drivers Hours of Service Regulations Driving time means any period at the controls of a running commercial vehicle. On-duty time is broader, covering loading, unloading, inspections, fueling, paperwork, and other work performed for the carrier.
A third limit catches even experienced drivers: the 16-hour elapsed-time window. No driving is permitted after 16 hours have passed since the end of your last rest block of 8 or more consecutive hours, regardless of how much driving or on-duty time you have actually used.2Justice Laws Website. Commercial Vehicle Drivers Hours of Service Regulations A driver who spends several hours waiting at a dock without working still watches the 16-hour clock tick down. Once it closes, you need another 8 consecutive hours off before driving again.
Required Rest and Off-Duty Time
Every day, a driver must take at least 10 hours of off-duty time. Of those, at least 8 must be a single unbroken block, and at least 2 additional hours must fall outside that block.2Justice Laws Website. Commercial Vehicle Drivers Hours of Service Regulations The extra 2 hours can be split into shorter breaks during the shift, but each break must be at least 30 minutes. A 15-minute pause at a fuel stop doesn’t count.
The 8-hour block is the anchor of the whole system. Until you complete it, your daily driving and on-duty clocks don’t reset, and the 16-hour elapsed-time countdown doesn’t start over.
Deferring Off-Duty Time
The regulations let you defer up to 2 hours of daily off-duty time to the following day, provided specific conditions are met.3Justice Laws Website. Commercial Vehicle Drivers Hours of Service Regulations The deferred time cannot come out of the mandatory 8-hour rest block; only the extra 2 hours can move. On the second day, the deferred hours are added to that day’s 8-hour block, producing a 10-hour unbroken rest period.
Over the two-day span, total driving cannot exceed 26 hours, and total off-duty time must still reach at least 20 hours. You cannot chain deferrals from one day to the next, and your daily log must include a written declaration identifying whether you’re on day one or day two of the deferral.
Sleeper Berth Split
A solo driver in a vehicle with a qualifying sleeper berth can split the daily off-duty requirement into two periods instead of taking all 10 hours at once. Neither period can be shorter than 2 hours, and the two together must total at least 10 hours.4Justice Laws Website. Commercial Vehicle Drivers Hours of Service Regulations During each split, the driver must be resting in the sleeper berth. Driving time in the windows before and after each rest period still cannot exceed 13 hours, and the 16-hour elapsed-time rule applies to each window independently. You cannot defer off-duty time on a day when you use the sleeper berth split. Team drivers can also use a split, but with a 4-hour minimum for each period.
Weekly and Biweekly Cycles
Beyond daily limits, Canada tracks cumulative on-duty time over multi-day windows called cycles. Carriers assign drivers to one of two options:
- Cycle 1: a maximum of 70 hours of on-duty time over any 7-day period.
- Cycle 2: a maximum of 120 hours of on-duty time over any 14-day period. Cycle 2 adds a safeguard: the driver must take at least 24 consecutive hours off-duty before accumulating 70 on-duty hours within the cycle.
Once you hit your cycle’s ceiling, you cannot work again until older days fall off the rolling window or you take a full reset. For Cycle 1, a reset requires at least 36 consecutive hours off-duty. For Cycle 2, the reset is 72 consecutive hours.5Justice Laws Website. Commercial Vehicle Drivers Hours of Service Regulations After a completed reset, accumulated hours return to zero and a new cycle begins.
Carriers running long-haul operations in western Canada or cross-border corridors tend to favour Cycle 2 for its higher total, but the 24-hour mandatory break and the 72-hour reset mean scheduling has to be planned well in advance. Running out of cycle hours mid-trip is one of the most common failures in long-haul freight.
Adverse Conditions and Emergencies
The regulations separate two situations. In a genuine emergency where a driver needs extra time to reach a location that protects occupants, other road users, or the security of the cargo, the normal HOS limits do not apply.6Justice Laws Website. Commercial Vehicle Drivers Hours of Service Regulations This is a narrow exception covering situations like sudden blizzards where stopping is more dangerous than continuing, not routine delays.
Adverse driving conditions south of latitude 60°N, such as unexpected storms, road closures, or accidents causing major detours, allow the driver to extend the 13-hour driving limit by up to 2 hours. The same 2-hour extension applies to driving, on-duty, and elapsed time within the applicable cycle. The full 8-hour rest block must still follow, and the trip has to have been completable under normal conditions without the extension.6Justice Laws Website. Commercial Vehicle Drivers Hours of Service Regulations The reason for the extension must be noted in the daily log.
Operations North of Latitude 60°N
Trips in the northern territories follow more generous daily limits. A driver operating north of latitude 60°N can accumulate up to 15 hours of driving time and 18 hours of on-duty time before needing 8 consecutive hours off, and the elapsed-time window expands to 20 hours.5Justice Laws Website. Commercial Vehicle Drivers Hours of Service Regulations Cycle limits and reset requirements mirror the southern rules, but sections 39 through 54 of the regulations govern northern routes separately. Adverse-condition extensions above 60°N add up to 2 hours to the 15-hour driving limit.
Electronic Logging Devices
Every driver subject to the HOS rules must record hours using an electronic logging device certified by a third-party body accredited by the Minister of Transport. Transport Canada publishes the list of certified devices, and enforcement officers reference it during inspections.7Transport Canada. List of Electronic Logging Devices The device connects to the vehicle’s engine and automatically captures driving time, engine hours, and GPS location.
At a roadside check, drivers must present ELD records to the officer, typically on the device’s screen or by wireless transfer. Operating without a certified device when one is required can put the vehicle out of service on the spot.
If the ELD Malfunctions
If your ELD displays a malfunction or diagnostic code, switch to paper logs immediately and continue recording hours manually. The carrier has 14 days from when it learns of the malfunction to repair or replace the device, or until the driver returns to the home terminal if the planned trip runs beyond that window.8Justice Laws Website. Commercial Vehicle Drivers Hours of Service Regulations Keep blank paper log grids in the cab for this situation. The malfunction code must appear in each daily log until the ELD is back in service.
Penalties for Violations
Federal HOS penalties are organized into three tiers based on severity. The fines apply per contravention:
- Minor violations (administrative and basic recordkeeping errors): up to $300 for drivers, up to $600 for motor carriers.
- Moderate violations (exceeding driving or on-duty limits, more serious recordkeeping gaps): up to $500 for drivers, up to $1,000 for motor carriers.
- Severe violations (tampering, falsification, obstruction, or the most serious rest-period breaches): up to $1,000 for drivers, up to $2,000 for motor carriers.
ELD tampering and record falsification carry some of the stiffest individual penalties. A driver who tampers with an ELD faces a $1,000 fine, and a carrier that requests or allows the tampering faces up to $2,000. The same amounts apply for falsifying or destroying a record of duty status.9Transport Canada. 15. Q&As
The Motor Vehicle Transport Act sets higher ceilings for convictions under the Act itself: up to $5,000 for an individual and up to $25,000 for a corporation.10Justice Laws Website. Motor Vehicle Transport Act Repeated violations can trigger a carrier safety audit, and a pattern of non-compliance can lead to suspension of the carrier’s safety fitness certificate. Roadside officers can place a vehicle out of service immediately when a driver has exceeded limits or cannot produce valid logs.
Driving Into the United States
Canadian rules stop at the border. Canadian drivers entering the United States must follow U.S. HOS rules (49 CFR Part 395) while operating on American roads, and American drivers entering Canada must comply with SOR/2005-313. The two systems are similar in structure but differ on specific numbers: the U.S. allows 11 hours of driving within a 14-hour on-duty window, compared to Canada’s 13-hour driving limit within a 14-hour on-duty cap. Logs recorded on a Canadian-certified ELD are generally accepted at U.S. inspections, but a driver’s compliance is measured against whichever country’s rules apply to the segment being driven.