US labor regulations have mandated that almost all U.S. commercial motor vehicles must track their driver's hours of service with an electronic logging device (ELD). The ELD mandate has been in effect since December 2019, so it's relatively new, and has resulted in an industry-wide shift towards ELD-compliance systems. We've covered the ins and outs of the new regulation in this guide to the ELD mandate, and we've rounded up the top ELD devices on the market today as well.