Are Canada- and Mexico-domiciled drivers required to use electronic logging devices (ELDs) when they are operating in the United States?

Yes. Canada- and Mexico-domiciled drivers must comply with the Federal hours of service rules while operating in the United States. This includes using ELDs unless they qualify for one of the exceptions. A driver operating in multiple jurisdictions will be able to annotate the driver’s record of duty status on the ELD with information on periods of operation outside the United States.