Differences between AOBRDs and ELDs

Differences in the Deadlines

If a CMV driver had a compliant AOBRD (automatic onboard recording device) installed on or before Dec. 17, 2017, the deadline to switch to ELDs  was extended to December 16, 2019. For the AOBRD to be compliant it must at all times:

  • Integrally synchronized with the operations of the commercial motor vehicle in which it is installed
  • Record engine use
  • Record road speed
  • Record miles driven
  • Record date and time of day

Differences in the AOBRD and ELD Laws

The table below highlights what is addressed under each of the laws. Many of the issues addressed and resolved with the ELD ruling were not with the AOBRD ruling. Even with the extension, all AOBRD users are subject to the new supporting document requirements starting on the compliance date.

Differences in Technology

According to the FMCSA and the Commercial Vehicle Safety Alliance (CVSA), AOBRDs are different from logging devices is that AOBRDs connect data from CMVs differently. The 1988 ruling for AOBRDs has no technical specifications in how data should be electronically transferred. Data under the ELD rule requires both telematics (web services and email) and local transfer (Bluetooth and USB). AOBRDs transfer data mainly through web services and email.



Up Next: FMCSA Grants Specialized Carriers and Rigging Association HOS ELD 30-minute Rest Break Exemption