AI summary
Display the legal or trade name and USDOT number on both sides of the commercial motor vehicle, in contrasting lettering legible from 50 feet while stationary. The eCFR's current §390.21T text, accessed 2026-07-21, is the named source because the base section is suspended. Check current federal and state marking rules before application.
Each receipt below describes its exact retained artifact or live source. Dates and digests never cross artifact boundaries.
Evidence publisher: Office of the Federal Register and Government Publishing Office. Source date: 2026-07-21.
No captured bytes are represented; use the live publisher link to re-check this source.
Scope and material limitation
This guide summarizes the current federal temporary-rule handoff. It does not state a universal letter height or override additional state requirements.
Dated source facts
Source-snapshot manifest receipt
This receipt attests the source snapshot manifest, not any individual fact.
The answer-series chain record is unsigned. It does not authenticate a person, organization, eligibility state, or individual fact.
d3f1a1628e5607dffc2fdee897fab56c43f7555085f63f228d0111fa41309fc550d3388f7c97e069cacdf36c0623db5dc2ca7078f64039456fed26524f712f7f37cdf909cfcfc18514a653a5a40132c790ed809996ea3b1b0fd40de2183e93790unsignedPrimary-source chain
Limitation: The live federal rule can change, and state or operation-specific marking rules can also apply. Review the current text before applying markings.
Re-derive this answer from the named source and dated scope; no Fonteum account is required.
Methodology and limitations
Frequently asked questions
What’s on file, by the numbers
Platform snapshot · 2026-07-28
Integrated, with-data, and fresh-observation counts are separate. No platform-wide source-completeness count is published. Completeness is source-specific and must be evaluated against the named source's expected scope. State coverage is a separate jurisdiction measure.
Source authority is record-specific
Use the issuer named on the record.
Fonteum spans federal, state, and global public publishers. A source page or returned record identifies its issuer and dataset where that metadata is available. A platform registry count does not assign every page to one authority or establish loaded, fresh, or complete coverage.
Reproducible by design
Inspect the evidence each published figure actually supplies.
Source and date
Research pages expose the named public file and observation date where those fields are available. Source-file SHA-256 coverage is separate; facts do not currently link deterministically to signatures.
Available derivation
Studies with a retained release and committed derivation link the SQL or method used. Other studies state the evidence and reproduction limits they actually have.
Daily observations
Dated table row-count observations can detect local drift. They do not imply that an upstream publisher released or Fonteum ingested new data that day.
Named medical review
Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.