CFR › Title 49 › Part 395 › §395.2049 CFR §395.20Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Scope. This subpart applies to ELDs used to record a driver's hours of service under § 395.8(a).(b)Applicability. An ELD used after December 18, 2017 must meet the requirements of this subpart.