ODNI Preliminary Assessment on UAP (2021)
Summary
ODNI's 25 June 2021 Preliminary Assessment on UAP, by the UAP Task Force. Of 144 US-government reports (2004–2021), only one was identified with high confidence (a deflating balloon); the rest remained unexplained for lack of high-quality data.
Common questions
- How many UAP reports did the 2021 ODNI Preliminary Assessment examine, and how many were explained?
- The assessment covered 144 reports from U.S. government sources between November 2004 and March 2021. Only one was identified with high confidence — a large, deflating balloon — and the rest remained unexplained, primarily due to limited and inconsistent reporting.
- What flight behaviors did the 2021 assessment describe in UAP incidents?
- In 18 incidents described in 21 reports, observers reported unusual movement or flight characteristics. The assessment states these could reflect sensor errors, spoofing, or misperception, and require further analysis. It also recorded 11 documented near-misses between aircraft and UAP.
- What categories did the 2021 ODNI assessment propose for UAP?
- The assessment proposed five categories: airborne clutter, natural atmospheric phenomena, U.S.-government or industry programs, foreign-adversary systems, and a catchall "other." It found no data indicating a foreign collection program.
Source & Classification
Record metadata
- Record type
- Report landing
- Decade
- 2020s
- Review status
- published
- Publication status
- published
Official source link
https://www.dni.gov/index.php/newsroom/reports-publications/reports-publications-2021/3550-preliminary-assessment-unidentified-aerial-phenomenaPreservation copy (PDF) ⬇ · 377 KB · 9 pp A local preservation copy of this public-domain U.S.-government document. The official source above is authoritative.
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Topics
Cite this record View collection →
Office of the Director of National Intelligence (ODNI). "ODNI Preliminary Assessment on UAP (2021)". 2020s. Official source: https://www.dni.gov/index.php/newsroom/reports-publications/reports-publications-2021/3550-preliminary-assessment-unidentified-aerial-phenomena. Cataloged by the independent UAP Records Archive (not an official or government source): https://uap-archive.org/uap/records/odni-2021-preliminary-assessment-uap/.
APA
Office of the Director of National Intelligence (ODNI). (2020s). ODNI Preliminary Assessment on UAP (2021). https://www.dni.gov/index.php/newsroom/reports-publications/reports-publications-2021/3550-preliminary-assessment-unidentified-aerial-phenomena
MLA
Office of the Director of National Intelligence (ODNI). "ODNI Preliminary Assessment on UAP (2021)." 2020s, https://www.dni.gov/index.php/newsroom/reports-publications/reports-publications-2021/3550-preliminary-assessment-unidentified-aerial-phenomena.
Chicago
Office of the Director of National Intelligence (ODNI). "ODNI Preliminary Assessment on UAP (2021)." 2020s. https://www.dni.gov/index.php/newsroom/reports-publications/reports-publications-2021/3550-preliminary-assessment-unidentified-aerial-phenomena.
BibTeX
@misc{uaprecords_odni-2021-preliminary-assessment-uap,
title = {ODNI Preliminary Assessment on UAP (2021)},
author = {Office of the Director of National Intelligence (ODNI)},
year = {2020s},
howpublished = {Official source: https://www.dni.gov/index.php/newsroom/reports-publications/reports-publications-2021/3550-preliminary-assessment-unidentified-aerial-phenomena},
note = {Cataloged by the independent UAP Records Archive — not an official or government source},
url = {https://uap-archive.org/uap/records/odni-2021-preliminary-assessment-uap/}
} Embed this record
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<figure style="max-width:600px;margin:0;"> <a href="https://uap-archive.org/uap/records/odni-2021-preliminary-assessment-uap/"><img src="https://uap-archive.org/og/records/odni-2021-preliminary-assessment-uap.png" alt="ODNI Preliminary Assessment on UAP (2021) — UAP Records Archive" width="600" style="width:100%;height:auto;border:0;" loading="lazy"></a> <figcaption style="font-size:13px;line-height:1.5;">Office of the Director of National Intelligence (ODNI). "ODNI Preliminary Assessment on UAP (2021)". 2020s. Official source: https://www.dni.gov/index.php/newsroom/reports-publications/reports-publications-2021/3550-preliminary-assessment-unidentified-aerial-phenomena. Cataloged by the independent UAP Records Archive (not an official or government source): https://uap-archive.org/uap/records/odni-2021-preliminary-assessment-uap/. <a href="https://uap-archive.org/uap/records/odni-2021-preliminary-assessment-uap/">View record →</a></figcaption> </figure>
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Archivist note
The 25 June 2021 Preliminary Assessment on Unidentified Aerial Phenomena. According to ODNI, this preliminary report was submitted to Congress and relays the progress the Unidentified Aerial Phenomena Task Force made in understanding UAP. The page provides the report for download; this archive links the landing page and does not host the document.
Browser verification on 2026-05-27 confirmed this ODNI document landing page on dni.gov resolves. dni.gov blocks automated fetch, so the URL was confirmed via manual browser (Chrome-extension) review rather than automated request, consistent with the archive’s source-verification practice.
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