FOIA and UAP Records

What FOIA is and how a request works

The Freedom of Information Act rests on a simple presumption: federal agency records are open to the public unless a specific exemption applies. The government's central portal, FOIA.gov, reduces the mechanics to three plain steps. The first is to check whether the records are already public, because agencies post frequently requested material in online reading rooms. The second is to put the request in writing, since the act asks only that a request "be in writing and reasonably describe the records you seek," with no special form required. The third is to send it to the right place, meaning "the FOIA office of the agency or agency component that you believe has the records."¹

There is no single government warehouse of files. Each agency answers for its own records, so a request for UAP material might go to the Air Force, the National Archives, the CIA, the Navy, or the newer All-domain Anomaly Resolution Office, depending on which body is likely to hold what is sought. A request that names a specific program, date range, or incident gives the search a real chance of success, while a broad demand for all UFO files invites a fee estimate or a rejection.

The statute also sets a clock. An agency is required to make a determination on a request within 20 working days, with an additional ten working days permitted in unusual circumstances, such as a search across multiple offices or a need to consult another agency.² In practice, that deadline and the time an answer actually takes are two different things.

The nine exemptions in plain terms

Nine exemptions mark the boundaries of what the act reaches. They are the legal grounds an agency cites when it withholds a record or part of one, and reading them in plain terms explains most of what a requester encounters.¹

For UAP requests the first and third exemptions carry the most weight. Exemption 1 covers material classified under an executive order for national security, and Exemption 3 covers material a separate statute withholds, such as the laws protecting intelligence sources and methods. Much of what remains withheld in UAP files, and much of what appears as redaction on released pages, is attributed to these two categories.¹

Fees, waivers, appeals, and lawsuits

Filing costs nothing to begin. There is no initial fee required to submit a request, and agencies usually provide the first two hours of search time and the first 100 pages of duplication at no charge.¹ Beyond that allowance, fees depend on the requester's category. Agencies sort requesters into three groups:

• Commercial requesters, who pay for search, review, and duplication
• Educational, scientific, and news-media requesters, who pay only for duplication beyond the first 100 pages
• All other requesters, who pay for search and duplication after the standard free allowance²

A requester can also ask for a fee waiver. The standard is public benefit: a waiver is granted when disclosure is "in the public interest" and "likely to contribute significantly to public understanding of the operations and activities of the government."¹ Researchers and news-media requesters often qualify, though the agency decides case by case.

Two forms of recourse follow a disappointing answer, and both are part of the ordinary process rather than an escalation outside it. The first is the administrative appeal. A requester who is denied records, told that no records exist, or refused a fee waiver can appeal in writing to the agency, generally within 90 calendar days of the denial, at no cost.² The Office of Government Information Services, a neutral office within the National Archives, offers mediation as an alternative.¹ The second is a lawsuit. Once administrative remedies are exhausted, a requester may sue the agency in federal district court, where the government bears the burden of justifying each withholding.² Much of what is publicly known about government UAP records reached daylight this way.

What requesters realistically encounter

The statutory clock and the lived experience of requesters diverge, and the reasons are documented rather than hidden. Federal agencies received more than 1.1 million FOIA requests in fiscal year 2023 and processed a record 1,122,166, a volume that produces backlogs at the busier agencies.³ A straightforward request may return records in a few weeks. A request touching national security files at an intelligence agency can take months or years, and requesters routinely track their cases by a queue number.

Three features of the process account for most of the friction, and each is a defined step rather than an obstruction:

• Redactions. When part of a record is exempt and part is not, the agency does not withhold the whole document. The act requires that "any reasonably segregable portion of a record shall be provided to any person requesting such record after deletion of the portions which are exempt."⁴ The black bars on a released page mark where an exemption was applied, usually with the exemption number printed in the margin.
• Glomar responses. In some cases an agency will neither confirm nor deny that responsive records exist, on the ground that acknowledging them would itself reveal protected information. This is the Glomar response, named for the Hughes Glomar Explorer, a ship built for a 1970s CIA operation to recover a sunken Soviet submarine. When the journalist Harriet Ann Phillippi requested records about the ship and the agency's contacts with the press in 1975, the CIA answered that it could "neither confirm nor deny" their existence, and the courts weighed that answer in the case that gave the doctrine its name.⁵
• Timelines and appeals. A request that returns nothing, or is met with a Glomar response, is not the end of the road. It is the point at which the appeal and, if needed, the lawsuit become the documented recourse.

None of this is unique to UAP files, though the national security and sources-and-methods exemptions appear there more often than average.

Major archives built from released records

Decades of granted requests have produced standing archives that anyone can search without filing anything. These collections are the practical face of FOIA for most people interested in the subject, and they range from one person's lifelong project to the reading rooms of the agencies themselves.

The Black Vault

The Black Vault is the largest civilian archive built from FOIA requests. John Greenewald Jr. began it in 1996 as a teenager, filing his first requests at age fifteen, and has since submitted more than 5,000 FOIA requests across dozens of agencies.⁶ The site grew from a personal page into a repository holding over two million files by 2020. Its holdings reach well beyond UAP material, but the unidentified-phenomena files are its best-known component. In 2015 Greenewald posted 129,491 declassified documents covering Project Blue Book and its predecessor studies Project Sign and Project Grudge, making the Air Force case files freely searchable online.⁶

The CIA reading room

The Central Intelligence Agency maintains its own online FOIA Electronic Reading Room. Its UFO holdings span the 1940s through the early 1990s, with the bulk from the late 1940s and 1950s, and they entered the public record through litigation.⁷ In September 1977 the group Ground Saucer Watch sued the agency under FOIA, and on 14 December 1978 the CIA released 298 documents, roughly 800 pages, withholding 57 documents of about 100 pages on national security and sources-and-methods grounds.⁸ A later suit for the remaining files was dismissed in 1980 after the court found the agency's search adequate.⁸

The larger shift came in 2017, when the CIA posted its CREST archive online. The collection of more than 12 million pages across roughly 930,000 documents had, since 1999, been available only on dedicated terminals at the National Archives facility in College Park, Maryland. Moving it online, in the words of a CIA information official, meant that "access to this historically significant collection is no longer limited by geography."⁹ The UFO records within CREST, together with the 2,780 pages the CIA later provided on a purchased disc, are now searchable from any browser.⁶

Project Blue Book at the National Archives

Project Blue Book, the Air Force study that ran from 1947 to 1969, left the most heavily used single body of UFO records. Its files record 12,618 sightings, of which 701 remained unidentified when the program closed on 17 December 1969.¹⁰ After the program ended the records were transferred to the National Archives, which holds roughly 42 cubic feet of textual material and copied the case files onto 94 rolls of microfilm for research use.¹⁰ The Archives holdings and the digitized copy on The Black Vault together mean the entire Blue Book file, once available only to reading-room visitors, can now be read from anywhere.

AARO's published records

The All-domain Anomaly Resolution Office, established in 2022 to consolidate the government's UAP work, publishes records directly rather than waiting for requests. It operates an electronic FOIA reading room and a UAP Records page, posts case resolution reports on individual sightings, and states that it "is committed to facilitating the declassification and public release of as much UAP-related information as possible."¹¹ Its most substantial release to date is the Historical Record Report Volume 1, published on 6 March 2024, which reviewed official United States investigative efforts from 1945 to the present and worked from both classified and unclassified archives.¹² AARO also points requesters toward the National Archives, which is digitizing UFO and UAP records on a rolling basis.¹¹

Notable release milestones

A handful of releases mark the widening of public access, each verifiable against the releasing body's own records.

How released records feed the case record

Released records rarely settle a case by themselves, but they supply the documentary spine that testimony and field investigation are measured against. A witness account of an event over a military range gains weight when a released radar log or incident report places activity at the same time and place. Researchers use the Blue Book files to trace how a case was handled at the time and to recover the original wording of a report before later retellings reshaped it, and experiencers draw on the same archives to match dates, locations, and known official activity against what they witnessed.

The records also mark the limits of the paper trail. A file released with heavy redaction, or met with a Glomar response, shows where the public record ends and where a case must rest on testimony and physical observation instead. The archives built from FOIA are therefore less a set of answers than a shared reference surface, one that lets accounts, official findings, and open questions be laid side by side against the same documents.

Documentation and research record

The documentation behind government UAP records has several layers. The base layer is the released records themselves: Air Force case files, CIA memoranda, Navy and Defense Department reports, and the growing body of AARO publications. The second layer is the systems that hold them, from the agency reading rooms and the CREST database to the National Archives holdings and the civilian repositories that mirror them.^6,9,10 The third layer is the paper the process generates about itself, including the annual FOIA reports that agencies file with the Department of Justice and the court opinions that decide contested withholdings.³

What the record does not yet contain is as important as what it does. Files that remain classified, requests met with a Glomar response, and passages withheld under the national security exemptions all sit outside public reach, and their existence is often documented only by the fact of the redaction or the refusal. The formal literature analyzing this body of records as a whole is thin, and researchers who work in it tend to rely on the primary documents and on one another's request logs rather than on a settled secondary scholarship.

The record and open questions

Documented: The Freedom of Information Act gives any person a right to request federal records, subject to nine exemptions, standard fees, a 20-working-day response target, and rights of appeal and lawsuit.^1,2 Decades of requests have released large bodies of UAP material, including the Project Blue Book case files, the CIA's UFO holdings, and AARO's own publications, and these are now searchable through government reading rooms, the National Archives, and civilian archives such as The Black Vault.^6,10,11

Reported: Requesters describe long waits, heavy redaction, and occasional Glomar responses on national security grounds, and researchers report that the released files rarely resolve a case on their own. The volume of requests, more than 1.1 million government-wide in fiscal year 2023, means timelines vary widely by agency and by subject.³

Open questions: What sits behind the still-classified files is a live question that serious researchers are actively pursuing. Some withheld passages may hold routine security material of little bearing on the phenomenon, while others may hold records of real substance, and each new release and court ruling redraws that line. How far continued requests, litigation, and proactive publication by offices such as AARO can widen public access is being tested case by case, and the archive grows with each answer.

Frequently asked questions

How do I request UAP records?

Put the request in writing and send it to the agency likely to hold the records, since there is no central UAP archive. The Freedom of Information Act asks only that a request reasonably describe the records sought, so naming a specific program, date range, or incident works far better than a broad demand for all UFO files. Depending on the subject, the right recipient may be the Air Force, the National Archives, the CIA, the Navy, or the All-domain Anomaly Resolution Office. There is no fee to file, and the first two hours of search time and first 100 pages are usually free.¹

What is The Black Vault?

The Black Vault is the largest civilian archive of government records assembled through FOIA. John Greenewald Jr. began it in 1996 as a teenager and has filed more than 5,000 requests, building a collection of over two million files by 2020. In 2015 he posted 129,491 declassified documents from Project Blue Book and its predecessor studies, making the Air Force UFO files freely searchable online.⁶

Why are records redacted?

Redaction marks where a FOIA exemption applies. When part of a record is exempt and part is not, the agency releases the non-exempt portions and blacks out the rest, because the act requires that any reasonably segregable portion be provided after deletion of the exempt portions.⁴ On UAP files the redactions most often cite the national security exemption or a statute protecting intelligence sources and methods, and the exemption number is usually printed beside the black bar.¹

What has FOIA actually released?

A great deal. FOIA and related declassification have produced the full Project Blue Book file of 12,618 cases, the CIA's UFO holdings from the late 1940s and 1950s, first released to Ground Saucer Watch in 1978, and more recently AARO's case resolution reports and its 2024 Historical Record Report.^8,10,12 The CIA's broader CREST archive of more than 12 million pages, posted online in 2017, includes the UFO records among its holdings.⁹

How long do requests take?

It varies widely. The statute sets a target of 20 working days for a determination, with ten more in unusual circumstances, but agencies received more than 1.1 million requests in fiscal year 2023, and backlogs are common.^2,3 A simple request may return records in weeks, while one touching classified national security files can take months or years. Appeals and, if needed, a lawsuit in federal court are the documented recourse when an answer is slow or unsatisfying.²

Sources and further reading

1. FOIA.gov. "Freedom of Information Act: Frequently Asked Questions." US Department of Justice. Accessed July 2026. https://www.foia.gov/faq.html
2. National Archives and Records Administration. "Freedom of Information Act (FOIA) Reference Guide." Accessed July 2026. https://www.archives.gov/foia/foia-guide
3. US Department of Justice, Office of Information Policy. "Agencies Processed Over One Million FOIA Requests in Fiscal Year 2023." Accessed July 2026. https://www.justice.gov/oip/blog/agencies-processed-over-one-million-foia-requests-fiscal-year-2023
4. US Department of Justice, Office of Information Policy. "OIP Guidance: The 'Reasonable Segregation' Obligation." FOIA Update. Accessed July 2026. https://www.justice.gov/archives/oip/blog/foia-update-oip-guidance-reasonable-segregation-obligation
5. Wikipedia. "Glomar response." Accessed July 2026. https://en.wikipedia.org/wiki/Glomar_response
6. Wikipedia. "The Black Vault." Accessed July 2026. https://en.wikipedia.org/wiki/The_Black_Vault
7. Central Intelligence Agency. "UFOs: Fact or Fiction? (FOIA Electronic Reading Room collection)." Accessed July 2026. https://www.cia.gov/readingroom/collection/ufos-fact-or-fiction
8. Haines, Gerald K. "CIA's Role in the Study of UFOs, 1947-90." Studies in Intelligence, 1997. Federation of American Scientists. Accessed July 2026. https://sgp.fas.org/library/ciaufo.html
9. Central Intelligence Agency. "CIA Posts More Than 12 Million Pages of CREST Records Online." 2017. Accessed July 2026. https://www.cia.gov/stories/story/cia-posts-more-than-12-million-pages-of-crest-records-online/
10. National Archives and Records Administration. "Project BLUE BOOK - Unidentified Flying Objects." Accessed July 2026. https://www.archives.gov/research/military/air-force/ufos
11. All-domain Anomaly Resolution Office. "UAP Records." US Department of Defense. Accessed July 2026. https://www.aaro.mil/UAP-Records/
12. Wikipedia. "All-domain Anomaly Resolution Office." Accessed July 2026. https://en.wikipedia.org/wiki/All-domain_Anomaly_Resolution_Office