Route & Equipment • Client-Side Instant Math

DOT Hours of Service (HOS) 11/14/70-Hour Trip Planner

Plan safe, FMCSA and Transport Canada compliant commercial trips adhering to 11h/13h driving limits, 14-hour on-duty windows, mandatory rest breaks, and sleeper resets.

#FMCSA HOS#Canada NSC#11-Hour Rule#13-Hour Rule#Sleeper Berth
⚡ Quick Formula & Key Takeaways
Verified FMCSA 49 CFR & ATRI Standards [2026]

Core Mathematical Formula: US FMCSA: Max 11 hours driving within 14-hour duty window, 10 consecutive hours rest. Canada NSC: Max 13 hours driving within 14-hour duty window, 10 hours daily off-duty (8 consecutive sleeper).

Key Outputs:Driving Hours30-Min Breaks10-Hr ResetsTotal Transit Time
Regulatory JurisdictionSelect your operating rules for driving limits and mandatory resets
Accounts for hills, traffic, and weigh stations (55–60 mph is realistic)
Active US FMCSA (49 CFR § 395) Constraints
  • 11-Hour Maximum Driving Limit after 10 consecutive hours off duty.
  • 14-Hour Consecutive Duty Window (driving cannot occur past 14th hour).
  • Mandatory 30-Minute Rest Break before driving past 8 cumulative hours.
  • 70-Hour / 8-Day cycle limit (34-hour restart resets the cycle).

FMCSA 11-Hour Driving & 14-Hour Duty Window Explained (49 CFR § 395.3)

The most critical concept in commercial dispatching is that the 14-hour window is an uninterrupted clock that begins the moment a driver logs On-Duty. It cannot be paused for meals, dock delays, or non-qualifying off-duty time:

11-Hour Driving Limit

A driver may drive a maximum of 11 hours after 10 consecutive hours off-duty. All 11 hours must be completed entirely within the 14-hour window.

14-Hour Duty Window

Once you go on-duty, the 14-hour countdown starts. Even if you sit in a driver lounge off-duty for 3 hours, driving is strictly illegal after the 14th hour.

10-Hour Off-Duty Reset

Full 10 consecutive hours in Sleeper Berth or Off-Duty status completely resets both your 11-hour driving clock and your 14-hour window.

Regulatory Comparison: US FMCSA vs. Canadian NSC Standard 9Cross-Border Rules
Rule ProvisionUnited States (FMCSA 49 CFR)Canada (NSC Standard 9)
Daily Driving Limit11 Hours Max13 Hours Max (+2 hours)
Daily On-Duty Window14 Consecutive Hours14 Hours (Excludes Off-Duty)
Mandatory Daily Rest10 Consecutive Hours Off10 Hours Total (8 Consecutive)
Mandatory Break30 Min before 8 hrs drivingNone required if within limits
Weekly Cycle Limits60h/7d or 70h/8dCycle 1 (70h/7d) or Cycle 2 (120h/14d)
Cycle Restart34 Consecutive Hours Off36 Hours (C1) / 72 Hours (C2)

The Split Sleeper Berth Provision: 8/2 and 7/3 Mathematics

Under the modernized FMCSA rules, property-carrying drivers can split their 10-hour off-duty requirement into two qualifying periods without exhausting their 14-hour window:

Qualifying Split Periods

One period must be at least 7 consecutive hours in the Sleeper Berth. The companion period must be at least 2 consecutive hours (off-duty, sleeper, or combination). Both periods combined must total at least 10 hours (e.g. 8/2 or 7/3 split).

Calculation Mechanism

When paired together, neither qualifying period counts against the 14-hour driving window. The calculation point for driving limits shifts forward to the end of the first qualifying break, giving drivers tremendous dispatch flexibility.

Live Calculation Output● Live Real-Time
Legal Delivery Arrival (ETA)
Fri, Nov 6, 11:39 AM
Total Transit: 49.5 Hours (2.1 Days)
10-Hr Sleeper Resets2 Resets20 Sleeper Hours
30-Min Rest Breaks2 Breaks1 Rest Hours
70-Hour Rolling Cycle StatusLEGAL
Trip demands 52.5 / 70.0 hrs.

Driver finishes with approximately 17.5 duty hours remaining on the clock.

Mathematical Formula Breakdown
US FMCSA: Max 11 hours driving within 14-hour duty window, 10 consecutive hours rest. Canada NSC: Max 13 hours driving within 14-hour duty window, 10 hours daily off-duty (8 consecutive sleeper).

All calculations execute strictly according to standard federal transportation benchmarks and transparent mathematical constants with zero hidden padding.

Cross-Country 1,450-Mile Dispatch Planning

Planning an individual solo driver dispatch from Chicago, IL to Dallas, TX (1,450 miles) at an average highway speed of 58 mph, with 2 hours loading and 2 hours unloading.

Total driving time = 1,450 ÷ 58 = 25.0 driving hours. Requires 3 driving shifts (Shift 1: 11h, Shift 2: 11h, Shift 3: 3h). Requires two 10-hour sleeper berth resets (20 hours total rest) and two mandatory 30-min breaks (1 hour). Total transit elapsed time = 25h driving + 20h sleeper + 1h breaks + 4h dock time = 50.0 total hours.
Cross-Border Operating Guidelines

US DOT vs. Transport Canada Standards Comparison

🇺🇸 US FMCSA (49 CFR)|🇨🇦 Transport Canada (NSC)
1. Axle & Weight Limits

US Interstate: Standard 5-axle semi is capped at 80,000 lbs (36,287 kg) gross, with 34,000 lbs tandem and 20,000 lbs single axle limits under Federal Bridge Formula B.

Canada (NSC/MOU): Standard tandem is permitted up to 17,000 kg (37,478 lbs). Canadian B-Train Super-B configurations gross up to 63,500 kg (140,000 lbs) under Ontario SPIF and Western Canadian regulations.

2. Hours of Service (HOS)

US FMCSA: Max 11 hours driving within a 14-hour on-duty window, followed by 10 consecutive hours off-duty/sleeper berth, and a 70-hour / 8-day rolling cycle.

Canada NSC Standard 9: Max 13 hours driving within a 14-hour on-duty window, requiring 10 hours daily off-duty, operating under Cycle 1 (70h/7d) or Cycle 2 (120h/14d).

3. Fuel Surcharge Benchmarks

US EIA Benchmark: Tied to the weekly US Energy Information Administration national on-highway diesel index, billed in $/mile.

Canadian FCA / NRCan: Freight Carriers Association (FCA) of Canada weekly diesel rack pricing, pegged in Canadian cents per liter (cpl) and billed in $/km or % surcharge.

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Instant 1-click conversion between US Imperial (miles, gal, lbs) and Canadian Metric (km, liters, kg, FCA cpl) for seamless cross-border freight.

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Frequently Asked Questions

Expert Regulations & Calculations Q&A

Yes. Under the modernized FMCSA HOS rules enacted in 2020, the 30-minute break can be satisfied by off-duty, sleeper berth, or on-duty not driving status (such as during fueling or pre-trip inspection).
TruckerToolsHub Editorial & Compliance BoardVerified

Authored by Commercial Freight Specialists • Mathematical logic verified against federal transportation law

Updated: October 2026
Federal Regulation

Formulas aligned with standard US DOT FMCSA (49 CFR) and Bridge Formula B (23 CFR § 658.17).

Canadian Standards

Metric distances, liters, and MOU tandem axle limits verified with Transport Canada NSC Standard 9.

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