Differences Between HOS 2 and HOS 3

Understanding the Key Differences Between Hours of Service Versions 2 and 3

This page summarizes the key differences you will see in your Verizon Connect mobile app screens, and in the behavior of your mobile apps, after you transition from Hours of Service 2 to Hours of Service 2.

To learn more about the app functionality and regulatory differences between HOS 2 and HOS 3 (AOBRD and ELD), click here. To download this document in PDF format, click here.

If, after reading this guide, you still have questions or you would like additional information, please feel free to contact customer support.

Key Differences Between HOS 2 and HOS 3

NOTE: In Hours of Service 3, Sign In and Sign Out no longer automatically place the driver into 'On Duty' or 'Off Duty' status. Drivers must manually select a new status at the start and end of their shift.

Differences Hours of Service 2 Hours of Service 3
Notifications (Coming Soon)

  • A red notification bar is shown on the app screen when running HOS 3 in AOBRD mode rather than ELD mode

WorkPlan Home

  • The Sign Out button in the bottom right corner has changed from a power icon to a profile icon if the driver has co-driver enabled
  • This profile icon is also used for adding co-driver users

HOS Home

  • AOBRD Sensor Failures are now raised as AOBRD Sensor Diagnostic Errors
  • HOS 3 shows an M&D (specific for ELD), but if you select the icons you will see AOBRD Sensor Failures if they occur


  • HOS 3 supports more exemptions. Rather than showing these under the Actions menu, this menu now contains a link to a separate 'Exemptions' page

Carrier Edits

  • Under HOS 2, if a carrier makes changes to a driver's log in Fleet, these are added to the drivers log without any requirement for driver approval
  • In HOS 3, the driver must approve edits in the app prior to the edit being added to the driver's log. When they attempt to review their days, drivers are shown any Carrier Edits to review

Certify Days

  • There is no signature panel in HOS 3
  • HOS 3 simply adds a Certified Stamp onto the log

Shipment Information Screen

  • In HOS 3 you are prompted to choose between either entering a document number on your log, or a Shipper and a Commodity number

16 Hour Exemption

  • In HOS 3, '16 Hour Exemptions' must be manually toggled on if the driver meets the requirements to use the exemption
  • In HOS 3, the '16 Hour Exemptions' rule is not visible to the driver until they meet the requirements needed to use it

Adding Past Events

  • In HOS 3 you cannot choose a sub status when you retroactively add an event to your log. For example, if you add an 'On Duty' event in the past, you will be prompted for a sub-status
  • In HOS 3 you will be prompted for a comment

Inspector Mode

  • Drivers can now lock down the application and present the required details to a road side inspector. This lock down also hides the violation displays
  • NOTE: 'Allow Switch from Off Duty to Driving' must be enabled, and the driver must have logged out before driving in a personal vehicle

Oilfield Settings

  • HOS 2 users who could use the 'Waiting At Well Site' status previously saw a Waiting option on the home screen. This setting is now a sub status of 'Off Duty' in HOS 3

Additional Changes

  • The Info button is no longer available on HOS 3. Drivers will need to use the Quick Reference Guide
  • The 'Can Switch Ruleset' option is no longer available in HOS 3. Drivers will not be prompted when they cross a border if they would like to remain on the current ruleset or change the rule set based on the new country they are in.
  • Drivers can now review logs that are up to 6 months old within the application. This wasn't offered in previous versions

Device Functionality

Device Display AOBRD ELD
Integral synchronization with the vehicle Not defined in FMCSA rules ELD must interface with ECM to automatically capture engine power status, vehicle motion, miles driven and engine hours
Recording vehicle location Required at each duty status change (can be manual) Required at each status change, engine on/off events, at 60 minute intervals while vehicle is in motion and beginning and end of personal conveyance use
Graph grid display Not Required Required – must be able to show a graph grid on display or printout
HOS warning messages Not Required Not required beyond unassigned events being displayed at login
Default duty status Not Addressed None allowed outside switch to On Duty when vehicle has not been in motion for 5 consecutive minutes and driver has not responded to prompt within 1 minute
Data transfer methods to law enforcement Not Required Required – Driver will need to be able to email the logs or send them via web services
Resistant to tampering AOBRD must be tamperproof ELD must support data integrity check functions and must not permit alteration or deletion of original information
Sensor failures and edited data Must identify sensor failures and edited data Must be able to monitor its compliance for malfunction and data inconsistencies and ELD must record those occurences

Device Display

Device Display AOBRD ELD
Driver CDL Information Not Required Must be displayed in header of daily ELD record and in the ELD file sent to FMCSA (includes driver license and state information)
Vehicle VIN Number Not Required Must be displayed in header of daily ELD record and in the ELD file sent to FMCSA
Carrier DOT Number Not Required Must be displayed in header of daily ELD record and in the ELD file sent to FMCSA

Miscellaneous Issues

Device Display AOBRD ELD
Unassigned Driving Time Not Required Must be captured and driver must approve or reject at login. If rejected, back office must reconcile and retain
Yard moves Not Required If used, must be selected and unselected by driver and counted as On Duty Not Driving. No mileage or time limits given by FMCSA. Carrier does not have to allow yard move
Personal Conveyance Not Required If used, must be selected and unselected by driver and counted as Off Duty. GPS accuracy must be decreased while in operation. Carrier does not have to allow yard moves
Driver edits Not Required Must be provided to driver for mistakes. All edits must be annotated. Drivers cannot edit Drive events
Back office edits Not Required or Addressed Edits by back office are allowed. All edits must be annotated and drivers must confirm all edits
Driver certification of record Not Required Driver must certify the final record (including edits) for each 24 hour period
Device malfunction repair Not Addressed Driver must notify company of defective unit within 24 hours of malfunction. The ELD must be repaired or replaced within 8 days. Drivers need to maintain paper during this period
Device registration and certification Not Addressed Carriers may only select an ELD from the FMCSA approved vendor list