National Highway Institute (email)
active Ingestion health: no data Executive · Tier 3 · email bulletin · Department of Transportation (FHWA / NHI)
Official site (opens in a new tab) · All sources
What this source is
The National Highway Institute is the training arm of the Federal Highway Administration. Its bulletins carry course offerings and training-program announcements for the transportation workforce.
Identity and registry record
- Registry id
nhi-email- Agency / parent organization
- Department of Transportation (FHWA / NHI)
- Branch
- executive
- Type
- email bulletin
- Status
- active
- Tier
- 3
- URL (home)
- https://www.nhi.fhwa.dot.gov/ (opens in a new tab)
- Registered
- 2026-10-01
- Registry notes
- Activated 2026-10-01 on observed delivery (operator approval). Coverage caveat: this is a training-catalog channel (e.g. 'NHI's Lanes of Learning: Summer Edition 2026'), not a press-release stream — low digest signal, tier 3. Registered because the operator approved the DOT sub-agency set; the operator may decline it if the training content is not wanted. Subscribed through DOT's own flow (sender [address withheld]); DKIM recorded per message at ingest.
How we ingest it
- Channel
- email bulletin
- Method
- Subscription bulletins to the project mailbox, ingested by the email adapter (src/fapd/email_sources.py; raw RFC-5322 capture, DKIM verify-and-archive).
- Adapter
- govdelivery
- Poll cadence
- the project mailbox is read about every 15 minutes
- Requests
- none — bulletins are delivered to the project mailbox by the agency's own subscription service
- Authenticity
- every message's DKIM signature is checked on arrival and the result is disclosed on each item; in the inbox a failing signature is labeled, never silently dropped; in the junk folder, which is read too, only a message whose signature verifies and matches the sender's domain is accepted, and the rest are refused and counted
- Capture and hash
- captured raw content is hashed (SHA-256) into the day's committed provenance manifest, hash-chained day to day (PROVENANCE.md)
Ingestion health
Ingestion health: no data No bulletin recorded from this source in the last 180 days.
This label has held since 2026-10-01T21:38:40Z (UTC) and was last re-checked 2026-10-01T23:31:27Z (UTC).
Counts are of our own requests, retries included. A 4xx or 5xx is the server declining to return content — that may be load, maintenance, on-demand generation, or a limit the publisher sets, and we cannot tell which from outside. Nothing here is a measurement of the publisher.
Ingestion statistics
These figures describe this project's ingestion of this source — items we recorded and requests we made — and nothing else. They are not a measurement of the publisher.
Last 24 hours
Last 24 hours: no items ingested
Last 14 days
Items ingested: none in the last 14 days — none recorded in the lookback period
Bulletins from this source are delivered to the project mailbox, so there are no requests to report. Its health is read from delivery recency alone.
Mailbox: no message from this sender in the last 14 days
No bulletin recorded from this source in the last 180 days.
All time
Bulletins from this source are delivered to the project mailbox, so there are no requests to report. Its health is read from delivery recency alone.
Last 30 days, day by day
No requests and no items were recorded in the last 30 days, so there is nothing to chart.