In Section 4.6.1.7, the rule requires that “an ELD must verify [data transfer] functionality every seven days.” What does this mean?

The ELD must verify that it continues to transfer data using the methods it is designed to support. This verification must happen every seven days, either automatically or requiring a manual step from the driver. The specific means of verification are left up to the provider. If the ELD has transferred data in this timeframe, that would be an acceptable means of verifying connectivity. FMCSA will also make available a verification function for the telematics option that may be used to verify connectivity without actually transferring an ELD file. Check the ELD Provider Website for more information.