Sleeper Berth Rule: 7/3 and 8/2 Split Explained
The sleeper berth rule, codified in 49 CFR 395.1(g)(1), allows property-carrying CMV drivers to split their required 10 hours off duty into two separate qualifying periods instead of taking one continuous block.
One period must be at least 7 consecutive hours in the sleeper berth; the other must be at least 2 hours off duty, in the sleeper berth, or a combination. Both periods must total at least 10 hours and can be taken in either order.
This provision became significantly more flexible after FMCSA’s 2020 HOS Final Rule, effective September 29, 2020. Before that rule, only an 8/2 split was permitted. The 7/3 split was added by the 2020 rule, giving drivers an extra hour of usable time in the shorter rest period.
As of May 2026, both the 7/3 and 8/2 remain the two legally available options under current FMCSA regulations.
What the Rule Requires and Who It Applies To
The sleeper berth rule applies exclusively to drivers of property-carrying commercial motor vehicles equipped with a compliant sleeper berth. The berth itself must meet the design, size, and structural requirements in 49 CFR 393.76, which specifies minimum interior dimensions, ventilation, and bedding requirements.
A vehicle without a qualifying berth cannot use the split sleeper provision regardless of driver preference or carrier policy. The equipment requirement is a hard eligibility condition, not an administrative formality.
Passenger-carrying CMV drivers operate under a separate sleeper berth provision with different requirements. The 7/3 and 8/2 splits covered in this article apply only to property-carrying operations under 49 CFR 395.1(g)(1).
The rule is also optional: per FMCSA FAQ guidance (November 2020), drivers may choose to use the sleeper berth provision on some days and the standard 10-hour reset on others. No carrier can require a driver to use a split instead of a continuous off-duty block.
A driver who takes a full 10 consecutive hours off duty in a single block, whether in the sleeper berth, off duty, or a combination, operates under the standard 14-hour rule reset and is not subject to the split sleeper mechanics described in this article.
The split sleeper provision only applies when a driver breaks that 10-hour block into two separate periods and wants both excluded from the 14-hour window. Understanding when to use the split versus the full reset is a planning decision that depends on the structure of the driver’s day and freight schedule.
Solo drivers on long-haul runs benefit most from the split when shipper and receiver delays, traffic, or delivery windows create natural breaks in the workday that would otherwise burn through the 14-hour clock.
Team drivers in a vehicle with a sleeper can also use the provision, though team operations typically rotate driving time around a single continuous sleeper berth block for the off-duty driver rather than managing a formal split.
ELDs play a direct role in whether a split is recognized as qualifying. A compliant ELD running FMCSA-registered firmware will track each berth period and off-duty period, calculate whether the two periods together meet the minimums, and retroactively exclude both from the 14-hour window calculation once the second period is complete.
Drivers should understand that the ELD does not validate the split in real time; it recalculates at the close of the second period. If a driver cuts a berth period short before it reaches 7 hours, the ELD will not flag it as a failed split until the driver goes back on duty and the system recognizes that the 7-hour floor was not met.
The 7/3 and 8/2 Splits: Requirements for Each Period
Both the 7/3 and 8/2 splits share the same structure: one period of at least 7 consecutive hours in the sleeper berth, and one period of at least 2 consecutive hours. The difference between the two splits is only in how long the shorter period runs.
The longer period always has a 7-hour floor; the shorter period has a 2-hour floor. Everything above those floors is permissible as long as the combined total reaches 10 hours.
The longer period (minimum 7 hours) must be taken specifically in the sleeper berth. Off-duty time not in the berth does not satisfy this requirement, regardless of how long it lasts. A driver who takes 8 hours off duty in a motel room cannot combine that with a 2-hour berth period and call it a qualifying split. The berth-status requirement for the longer period is strict.
The shorter period (minimum 2 hours) is more flexible. It can be spent in the sleeper berth, logged as off duty, or a combination of both. This is where the 7/3 split gives drivers a material operational advantage over the 8/2: the extra hour in the shorter period creates more room to absorb a shipper delay, a long fuel stop, or a mandatory 30-minute break into the shorter qualifying period without burning additional 14-hour window time.
The two periods can be taken in any order. The shorter 2- or 3-hour period can come first, followed by the 7-hour berth period, or the reverse. This sequence flexibility was preserved in the 2020 rulemaking and remains unchanged as of May 2026.
| Attribute | 7/3 Split | 8/2 Split |
|---|---|---|
| Longer period (sleeper berth only) | At least 7 consecutive hours | At least 8 consecutive hours |
| Shorter period (berth, off-duty, or combo) | At least 3 consecutive hours | At least 2 consecutive hours |
| Combined minimum | 10 hours | 10 hours |
| Order required | Either order | Either order |
| Counts against 14-hour window | No, once both periods complete | No, once both periods complete |
| Introduced | September 29, 2020 (2020 HOS Final Rule) | Pre-2020 |
| 70-hour clock affected | No | No |
| CFR citation | 49 CFR 395.1(g)(1) | Same |
Fractional splits are permitted as long as each period clears its minimum. A 7.5/2.5 split qualifies: the 7.5-hour berth period exceeds the 7-hour floor, and the 2.5-hour off-duty period exceeds the 2-hour floor. A 7/3.5 split also qualifies. What does not qualify is any pairing where the sleeper berth period falls below 7 consecutive hours, the shorter period falls below 2 consecutive hours, or the combined total falls below 10 hours. A 6.5/3.5 split with a 10-hour combined total is still a violation because the berth period does not meet the 7-hour minimum.
The 30-minute break requirement under the 11-hour driving limit interacts with split sleeper in one specific way worth knowing: if a driver’s shorter qualifying period (e.g., a 3-hour off-duty period) includes at least 30 consecutive minutes with no driving, and it occurs before 8 cumulative hours of driving have elapsed since the last qualifying break, that shorter period can satisfy the 30-minute break requirement simultaneously. Drivers should confirm with their ELD provider how their system logs this interaction, as different ELDs handle the 30-minute break clock reset in relation to the shorter split period differently.
How the 14-Hour Clock Is Recalculated After a Split
This is where most drivers run into compliance problems. The 14-hour clock does not pause or reset the same way it does after a full 10-hour off-duty block. Instead, it recalculates after both qualifying periods are complete, and the new 14-hour window is anchored to the end of the first qualifying period, not the end of the second.
The key arithmetic: once both periods are done, the driver measures all on-duty and driving time between the end of the first qualifying period and the start of the second qualifying period.
That on-duty block is subtracted from 14 to determine remaining window time. Time inside either qualifying period is excluded from the calculation entirely. The driver cannot begin that recalculation until the second qualifying period is complete. No partial credit applies while one period is still in progress.
A concrete example using a 7/3 split with the shorter period taken first:
- 6:00 a.m.: On duty. 14-hour window opens.
- 6:00–7:00 a.m.: 1 hour on-duty not driving (pre-trip, dispatch).
- 7:00 a.m.–12:00 p.m.: 5 hours driving. (5 hrs of 11-hr limit used; 6 hrs of 14-hr window used.)
- 12:00 p.m.–3:00 p.m.: 3 hours off-duty. First qualifying period ends at 3:00 p.m.
- 3:00–10:00 p.m.: 1 hour on-duty + 6 hours driving. (12 hrs of 11-hr limit used; driver is at the edge of the 14-hr window under standard rules without the split.)
- 10:00 p.m.–5:00 a.m.: 7 hours in the sleeper berth. Second qualifying period ends at 5:00 a.m.
Split is now complete. Recalculation begins from 3:00 p.m. (end of the first qualifying period). On-duty time between 3:00 p.m. and 10:00 p.m. = 7 hours. Remaining 14-hour window = 14 minus 7 = 7 hours from 5:00 a.m., giving the driver until 12:00 p.m. to operate.
However, the 11-hour driving clock has accumulated 11 hours total (5 before the split, 6 after), meaning no driving time remains. The driver must take a full 10-hour off-duty reset before driving again.
A second example with the longer period taken first shows a different operational shape. A driver who takes the 7-hour sleeper berth period early in the day, say immediately after coming on duty at a truck stop, and then takes a 3-hour off-duty break during a shipper delay later will have the same recalculation applied from the end of the earlier berth period. The arithmetic is symmetrical regardless of order.
Two critical points that frequently produce violations when misunderstood:
First, the 14-hour clock does not stop during the interim on-duty period between the two qualifying periods. Drivers who believe the clock is “paused” after the first qualifying period and continue working without tracking time are often surprised when the recalculation shows less window remaining than expected.
The exclusion of both qualifying periods from the 14-hour calculation happens retroactively at the end of the second period, not progressively as each period is taken.
Second, any on-duty time or driving time logged inside either qualifying period converts those periods into non-qualifying rest. A driver who takes “7 hours in the sleeper berth” but logs 30 minutes of on-duty not-driving time within that window does not have a 7-hour sleeper berth period. That period fails the consecutive-hours requirement, and the entire split fails to qualify.
What the Sleeper Berth Split Does Not Do
Several persistent misconceptions about the split sleeper provision produce real violations. Understanding what the rule does not do is as important as the mechanics of what it does.
The split does not affect the 70-hour rolling total. Time in the sleeper berth never counts toward the 70-Hour Rule cumulative limit, whether it is part of a split or not. But all on-duty and driving time outside the berth on both sides of the split accumulates against the 8-day rolling total normally.
A driver running split sleeper every day will approach the 70-hour cap on the same schedule as a driver taking full 10-hour resets, because the total on-duty hours generated are the same. Only the rest configuration differs. Drivers who believe split sleeper “stretches” the work week in terms of the 70-hour clock are incorrect.
The 11-hour driving limit carries over and is not reset. Driving hours accumulate across both sides of a split. If a driver logs 7 hours of driving before the first qualifying period and 4 hours after the second, those 11 hours have consumed the full daily driving limit. Only a full 10-hour continuous off-duty reset returns the 11-hour clock to zero. The split recalculates the 14-hour window but does nothing to the 11-hour limit.
The short period does not pause the 14-hour clock while the driver waits for the long period. Neither qualifying period removes any time from the 14-hour window until both are complete. If a driver takes a 3-hour off-duty break and then continues working without ever completing a 7-hour berth period, those 3 hours count against the 14-hour window as ordinary off-duty time. The benefit of the split provision materializes only after both periods qualify and are logged.
Other time combinations do not qualify under current rules. A 6/4 split, a 5/5 split, or any configuration where the longer period falls below 7 consecutive hours in the berth is not legal under 49 CFR 395.1(g)(1) as of May 2026. Any inspection showing a berth log of less than 7 consecutive hours will result in an HOS violation citation.
When a split fails to qualify, enforcement officers count both rest periods back into the 14-hour window, which often reveals a secondary violation of the 14-hour limit that was masked by the driver’s assumption that the split was valid.
The CSA consequence of a failed sleeper berth split is significant. A 14-hour violation carries a severity weight of 7 points in the FMCSA Safety Measurement System under the Hours-of-Service Compliance BASIC, the same severity level as an 11-hour or 70-hour violation.
Those points stay on the carrier’s BASIC record for 24 months, weighted most heavily in the first 6 months. A driver whose split fails inspection will also likely be placed out of service immediately if the underlying 14-hour or 11-hour limit was exceeded once the non-qualifying rest periods are counted back into the window.
The 2026 FMCSA Pilot Program: What Could Change
Under current regulations, the 7/3 and 8/2 remain the only legally available splits. FMCSA is actively testing whether expanded options should become permanent through the Flexible Sleeper Berth (FSB) Pilot Program, published in the Federal Register on September 17, 2025.
The FSB pilot is part of DOT Secretary Sean P. Duffy’s Pro-Trucker Package under Executive Order 14286. Under the pilot, approximately 256 enrolled drivers are testing 6/4 and 5/5 split configurations. In these configurations, neither period must reach 7 hours, as long as each period is at least 4 hours and the combined total equals at least 10 hours.
FreightWaves reported in September 2025 that protocol development for the FSB and companion Split Duty Period pilot began in early 2026, with over 500 drivers expected to participate across both programs. FMCSA’s Hours of Service page confirmed the spring/summer 2026 timeline for the six-week study design phase.
The FSB pilot is a data-collection program, not a regulatory change. Drivers not enrolled in the approved program must continue operating under the 7/3 and 8/2 rules. Attempting a 6/4 or 5/5 split without formal enrollment constitutes an HOS violation.
If FMCSA’s safety data from the pilot supports expanding split options, a notice of proposed rulemaking would follow. That process typically takes 12 to 24 months from data analysis to final rule. TruckerWiki will update this article when a proposed rule is published.
For HOS violations involving the sleeper berth provision and the CSA impact they carry, see HOS Violations: Fines, Penalties & CSA Impact.
By TruckerWiki Editorial Team | Regulatory sources: 49 CFR 395.1(g)(1) via eCFR, 49 CFR 393.76 via eCFR, FMCSA HOS Final Rule (June 2020), FSB Pilot Program Federal Register (September 2025). As of May 2026, the 7/3 and 8/2 splits remain the only legally available options outside the enrolled FSB pilot.
