100 air-mile exemption

An exemption to the normal hours of service rules that applies if drivers stay within a 100 air-mile radius of the their normal work reporting location and they are released from duty after 12 consecutive hours on duty.

AOBRD

Automatic on-board recording device. A device that can be used to record hours of service before the electronic logging device (ELD) rule compliance date of December 18, 2017.

CDL

Commercial driver's license.

Co-driver

A second driver, who takes turns with the main driver to drive a vehicle.

DVIR

Driver vehicle inspection report. A special form that drivers fill in as they inspect their vehicles.

ELD

Electronic logging device. A device that can be used to record hours of service and the rules that drivers must comply with from December 18, 2017.

FMCSA

Federal motor carrier safety administration.

General exemption

An exemption to the HOS ELD regulations.

HOS (hours of service)

A daily status report giving the amount of time a driver spent in various activities.

Job

An appointment to do work at a specified time and location, for a specified length of time.

Non-CDL short-haul exemption

An exemption to the normal hours of service rules that applies if drivers drive vehicles that do not require a CDL, and if they stay within a 150 air-mile radius of the their normal work reporting location.

Off Duty

An HOS status indicating that the driver is not on duty: driving or performing other on-duty tasks.

Oilfield

A setting used within Hours of Service to specify whether a driver is at an oilfield.

On Duty

An HOS status indicating that the driver is not driving, but performing other on-duty tasks.

Personal Conveyance mode

A mode that allows drivers to use a vehicle for authorized personal use without the driving time counting towards their HOS limits.

Post-trip DVIR

A DVIR form that is completed after completing a job, when logging off.

Pre-trip DVIR

A DVIR form that is completed before completing a job, when logging on.

Sleeper Berth

An HOS status in which the driver takes a break and spends time in the sleeper berth of the truck.

Status

An indicator of the state of a driver using Hours of Service. Status can be On Duty, Off Duty, Driving, or Sleeper Berth, or, if using oilfield options, In/Out Oilfield or Waiting.

Unregulated Driving Mode

A mode that allows drivers to drive a non-commercial motor vehicle without the driving time counting towards their HOS limits.

Yard Move mode

A mode that allows drivers to maneuver their vehicle around a yard, for example at a customer site or at the depot, without the driving time counting towards their HOS limits.