70-Hour Rule: the 8-Day Cycle
The carrier runs seven days and the driver is still adding hours on a 60-hour mental model. The limit that applies is 70 hours in 8 consecutive days, and it is not optional.
70 in 8
If trucks run every day
On duty
Dock time counts
Rolling
Not a calendar week
No fudge
Recap is addition
Ahmad Qazi
Founder & CEO, O Trucking LLC
Fact-Checked by O Trucking Owner-Operator Desk
Walks carriers through the 70-hour total without reteaching the 34-hour restart
Sources:
Written by Ahmad Qazi, founder of O Trucking LLC, drawing on 9+ years dispatching for owner-operators. Learn more about us.
O Trucking70-Hour Rule: the 8-Day Cycle
Key Takeaways
- Every-day carriers are on 70 hours on duty in 8 consecutive days.
- Carriers that do not run every day are on 60 in 7. They do not choose 70.
- Driving and on-duty not driving both count. Off duty and sleeper do not.
- The 8 days are consecutive, not a Sunday-to-Saturday calendar week.
- A qualifying 34-hour off-duty period ends the 8-day period. This page does not reteach how to build that restart.
- A recap that goes over 70 is over. There is no fudge factor in 395.3(b).
Who is on 70/8 instead of 60/7
49 CFR 395.3(b) is one rule with two branches. No motor carrier shall permit or require a driver to drive, and no driver shall drive, a property-carrying commercial motor vehicle for any period after having been on duty 60 hours in any period of 7 consecutive days if the employing motor carrier does not operate commercial motor vehicles every day of the week, or after having been on duty 70 hours in any period of 8 consecutive days if the employing motor carrier operates commercial motor vehicles every day of the week.
The branch is the carrier's operation. A carrier that moves commercial motor vehicles every day of the week is on the 70. A carrier that does not is on the 60. The driver does not elect the friendlier math, and the load board does not elect it either. If your company dispatches trucks seven days a week, you are in paragraph (b)(2) even on a week when you personally sat still on Tuesday.
This page owns the 70. The comparison, including what a one-truck company should do when it truly shuts down one day, is the companion on the 60-versus-70 page. The daily 11-hour and 14-hour clocks are not re-taught here. They still apply on top of the 70. A driver can be out of hours on the weekly total with driving time left on the day, and can be out of hours on the day with weekly time left. Both stops are real.
What on duty includes in the total
On duty is the total of driving and on-duty not driving. Fuel, the pre-trip, the post-trip, paperwork, coupling, and a live load you are required to attend all sit in the 70. A day that looks like 8 hours of driving and 3 hours of dock is an 11-hour day for this rule, not an 8-hour day. Carriers who recap only the driving line are building a fiction the auditor will add back up.
Off duty does not add to the 70. Sleeper berth does not add to the 70. A 10-hour break is not a gift of 10 hours back onto the weekly total. It is simply time that was never on the total. Personal conveyance, when it is truly personal conveyance and truly off duty, does not add either. A false personal-conveyance line that was really a deadhead is on-duty driving and it does add. Do not use the off-duty exclusion as a place to hide work.
Hours for a second motor carrier in the same 8 consecutive days count. The regulation says the limit applies regardless of the number of motor carriers using the driver's services. A Saturday local shift for someone else is not invisible to Monday's recap at your company.
The dock is on the 70
On-duty not driving counts the same as driving for 395.3(b). A recap of driving hours only is not a recap.
The rolling 8 days, not a calendar week
Any period of 8 consecutive days means the day in question plus the 7 days before it. Tomorrow, the oldest day falls out of the window and tomorrow's on-duty hours fall in. The total moves. It is not a bucket that fills from Sunday and dumps on Saturday night because the payroll week ended.
Take a driver with these on-duty totals, oldest day first: 10, 9, 11, 8, 10, 9, 8, and today 6 so far. The eight-day sum is 71. The driver is already past 70 while still on duty today. The oldest day, the 10, drops off only when it is no longer one of the 8 consecutive days. It does not drop off at midnight tonight if tomorrow's new day simply replaces it and today's 6, once finished, stays inside the new eight. People lose the recap by dropping a day a day too early.
A calendar week is irrelevant unless it happens to match 8 consecutive days, which it does not. Seven-day payroll, a Monday dispatch meeting, and a Sunday reset habit are not the rule. Count dates on the log. Eight dates. One sum.
How a 34-hour restart clears it
395.3(c)(2) says any period of 8 consecutive days may end with the beginning of an off-duty period of 34 or more consecutive hours. When that off-duty period begins and qualifies, the 8-day period ends. Hours that sat in the old period are not the starting balance of the new one. That is all this page needs to say about the restart.
How a driver must take the 34 hours, what breaks the consecutive count, and how the ELD should show it are owned by the 34-hour reset explained. Do not use this page as the restart manual. Do not describe a 34 that was really 28, and do not describe a restart that was really on-duty waiting. If the off-duty period does not qualify, the eight days keep rolling and the sum stands.
A restart is not a way to fudge a recap that is already over. If the driver drove after the total had passed 70, the restart does not erase that driving. It only ends the period going forward once it is valid. Fix the dispatch habit. Do not rewrite the past total.
Recap math with eight numbers that sum over 70
Here is one recap, on-duty hours, eight consecutive days, oldest first.
- Day 1: 9 hours on duty
- Day 2: 10 hours on duty
- Day 3: 8 hours on duty
- Day 4: 11 hours on duty
- Day 5: 9 hours on duty
- Day 6: 10 hours on duty
- Day 7: 8 hours on duty
- Day 8: 12 hours on duty
The sum is 9 plus 10 plus 8 plus 11 plus 9 plus 10 plus 8 plus 12. That is 77. Seventy-seven is more than 70. The driver was prohibited from driving once the on-duty total for the 8 consecutive days reached 70, which happened during day 8. There is no rounding down, no exclusion of the dock because it felt slow, and no language in 395.3(b) that permits a fudge. 77 is over. The hours after the 70th, if they were driving, are the violation.
Now the same eight days after a qualifying restart. The driver begins an off-duty period of 34 or more consecutive hours. Under 395.3(c)(2) that beginning ends the 8-consecutive-day period. The 77 does not carry forward. The next on-duty period starts a new count at zero, and a new set of 8 consecutive days will build from there. The old row stays in the retained logs. It is not the balance on the new recap. If the 34 does not qualify, ignore this paragraph and keep 77 in the rolling window until days age out.
Work the addition in the open. Write the eight numbers. Add them once. If the pencil and the ELD disagree, the driving events and the on-duty events win, not the pencil.
ELD recap versus a notepad recap
The ELD recap is only as honest as the duty status under it. If dock time was logged off duty, the device will show a pretty 70 that the bills of lading will ruin. Supporting documents exist so an auditor can put the driver at a place and a time. A notepad that copies the ELD's undercount is two copies of the same mistake, not a check.
Build the notepad from on-duty totals, not from miles and not from driving hours alone. Each day, write driving hours and on-duty-not-driving hours as two figures that you add. Compare the sum to the ELD's recap before the next dispatch. A gap means someone is logging work as off duty or the notepad is dropping a day early.
When the sum is 68, the next dispatch has to be short enough that driving will stop at 70, not a load that assumes a 10-hour day you do not have. When the sum is over, the truck stays until time ages out or a qualifying restart ends the period. Send the driver anyway, and you have required driving the rule forbids. That requirement is the carrier's violation as well as the driver's.
Pro Tip
Frequently Asked Questions
Can a driver choose the 70-hour rule because it is larger?
No. 395.3(b) keys the limit to whether the employing motor carrier operates commercial motor vehicles every day of the week. Preference is not the test.
Does sleeper berth time count toward the 70?
No. The limit is hours on duty. Off duty and sleeper berth are not on duty. Driving and on-duty not driving are.
Is the cycle Sunday through Saturday?
No. It is any period of 8 consecutive days. Dropping last Monday happens when that day is no longer inside the 8, not because a calendar week ended.
Does a 34-hour restart zero the 70?
395.3(c)(2) says any period of 8 consecutive days may end with the beginning of an off-duty period of 34 or more consecutive hours. How to take that restart is the other page. What it does to the 70 is that the old period ends.
I have 69 hours. Can I start a 4-hour drive?
You may not drive after having been on duty 70 hours. Starting a drive that would take you through the 70th hour is the violation the sentence forbids. Stop before the total exceeds the limit if the next status would be driving past it.
Do hours at a second carrier count?
Yes. 395.3(b) applies regardless of the number of motor carriers using the driver's services. Hours on duty for anyone in the 8 consecutive days go into the same total.
Add the eight days before you dispatch the next one.
O Trucking does not edit logs. After authority is ACTIVE, dispatch is a flat weekly fee.