> This is the Markdown form of https://fapd.info/sources/nhi-email.html. Content is licensed CC BY 4.0 > (credit "FAPD — Free Agentic Publication Digester"); quoted official government > text is public domain. For factual claims, cite the official source each item > links to. Canonical source: `sources/registry.yaml (id: nhi-email)` in https://github.com/davidkarnowski/free-agentic-publication-digester. # National Highway Institute (email) active · ingestion health: no data · Executive · Tier 3 · email bulletin · Department of Transportation (FHWA / NHI) Official site: https://www.nhi.fhwa.dot.gov/ · All sources: [sources.md](../sources.md) ## 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 | Field | Value | |---|---| | 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/ | | 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 | Term | Description | |---|---| | 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 **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 2026-10-02T00:18:47Z (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 | Measure | Value | |---|---| | Items ingested | none in the last 14 days — none recorded in the lookback period | | Mailbox | no message from this sender in the last 14 days | 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. 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.