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For most users, the best path is role first. Use this page when you need to locate a relevant 49 CFR section, understand its stakeholder relevance, or jump to the authoritative eCFR source.
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Interactive Citation Lifecycle
View the roadside-to-record lifecycle phases with plain-language guidance, common errors, CFR references, and related resources.
Open Lifecycle ToolExplore the Resource Guide
The Resource Guide provides a broader searchable tile and table library of CDL stakeholder materials, organizations, tools, and references.
Open Resource Guide
Last Updated: May 2026
Always verify regulatory language against the authoritative eCFR source.
Always verify regulatory language against the authoritative eCFR source.