Last Updated: April 2026

Hours of Service Rules for Trucks in Dearborn, Michigan - 2026 Guide

49 CFR Part 395 MI

Overview - HOS Rules in Dearborn, Michigan

For fleet operators running routes through Dearborn, Michigan, HOS violations represent a double threat: immediate fines and OOS orders, plus long-term CSA score damage that triggers more frequent inspections. The 11-hour driving limit, 14-hour window, and mandatory breaks aren't suggestions - they're strictly enforced federal regulations with a clear enforcement record in Michigan.

The Michigan State Police actively enforces HOS Rules regulations across Michigan's 18 inspection stations and through mobile enforcement units that can appear on any route. Fleet owners in Dearborn operating routes through Michigan should treat compliance as an ongoing operational priority, not a one-time task.

Michigan-Specific Requirements and Fine Schedule

While federal FMCSA standards under 49 CFR Part 395 apply nationwide, Michigan applies specific enforcement priorities and a fine multiplier of 1.1x to the federal baseline. The following table shows current fine amounts for HOS Rules violations in Michigan:

Violation Type	Amount	Notes
First Offense	$1,375	Standard enforcement for initial violations
Repeat Offense	$6,875	Violations within 24-month window
Out-of-Service Violation	$4,400	Vehicle/driver placed OOS immediately
Maximum Fine (single violation)	$17,600	Egregious or multiple violations
Estimated Downtime Cost	$500-$1,500/day	Revenue loss from OOS order (not a fine)
Insurance Premium Increase	15-25%	Annual increase after violations on record

Michigan-Specific Rules for HOS Rules

MSP Commercial Vehicle Enforcement Division enforces CMV regulations
Spring weight restrictions are extensive on secondary roads
Ambassador Bridge commercial traffic enforcement is active

Available HOS Exemptions in Michigan

agricultural short-haul exemption for cherries, blueberries, sugar beets

Dearborn Compliance Checklist - HOS Rules

Review all applicable HOS exemptions for your specific operations in Michigan. The short-haul exemption, in particular, is often available but underutilized by Dearborn area carriers. Document exemption eligibility and train drivers on proper application - misapplied exemptions are a violation category themselves.

Best Practice: Document every compliance action with date, responsible party, and outcome. Documentation is your defense during Michigan State Police audits.

Common HOS Rules Violations in Michigan

In Dearborn and throughout Michigan, the 30-minute break requirement is one of the most commonly misunderstood HOS provisions. The break must be a period of 30+ continuous off-duty or sleeper berth time, taken after no more than 8 hours of driving since last off-duty/sleeper berth time. Rest stop periods that include any on-duty activity don't qualify.

Critical: A single Out-of-Service order in Michigan results in an immediate fine of $4,400, plus truck downtime until defects are corrected. The total cost including lost revenue typically exceeds $5,900.

Where to Get Help in Dearborn, Michigan

For HOS Rules compliance assistance in Dearborn, contact these official resources:

FMCSA Michigan Division - 19900 Governors Dr, Olympia Fields, IL 60461 (Midwestern Service Center) - Federal Motor Carrier Safety Administration, Michigan Division
Michigan State Police - Primary state enforcement agency for commercial vehicles in Michigan

For compliance questions, the FMCSA provides a free compliance helpline at 1-800-832-5660. For Michigan-specific questions, contact the Michigan State Police directly.

Frequently Asked Questions - HOS Rules in Dearborn

What are the Hours of Service limits for truck drivers in Michigan?

In Michigan, truck drivers must follow FMCSA Hours of Service rules: maximum 11 hours driving after 10 consecutive hours off duty, within a 14-hour window from shift start, with a mandatory 30-minute break after 8 hours driving. The 60/70-hour weekly limit applies (60 hours in 7 days or 70 hours in 8 days). These are federal minimums - Michigan applies the same standards with no more lenient exemptions for interstate commerce.

Are there any HOS exemptions for drivers in Michigan?

In Michigan, several federal HOS exemptions may apply: the Short-Haul exemption (operating within 150 air miles of reporting location, returning same day), the Adverse Driving Conditions exemption (extends driving time by 2 hours in unexpected weather/road conditions), the 16-Hour Short-Haul exception (once per 7 days), and the Agricultural exemption (150 air miles from source during planting/harvest). Verify each exemption's specific requirements before applying it.

What are the fines for HOS violations in Michigan?

HOS violations in Michigan carry fines ranging from $1,375 for minor violations to $17,600 for the most serious violations. Egregious HOS violations - where a driver has exceeded the driving time limit by more than 3 hours - result in automatic OOS orders. The Michigan State Police treats pattern HOS violations as a serious safety threat and may initiate compliance reviews.

Do ELDs affect HOS enforcement in Michigan?

Yes. The FMCSA ELD mandate requires most CMV operators in Michigan to use Electronic Logging Devices, which automatically record driving time and generate HOS logs. ELDs make HOS violations more detectable - inspectors can review the ELD data instantly. ELD malfunctions must be documented and drivers must revert to paper logs within 8 days if the ELD cannot be repaired.