A blacked-out passage tells you something was withheld. It doesn't tell you what the missing words would prove.
FOIA exemptions protect certain information in federal agency records, but they don't automatically make an entire file secret. We read the agency's explanation alongside the released pages before drawing conclusions.
The useful starting point is the reason for withholding: what protection the agency claims, which information it covers, and whether anything else can be released.
What FOIA exemptions mean
The Freedom of Information Act generally requires federal executive-branch agencies to disclose requested agency records. Congress created nine exemptions to protect interests such as national security, personal privacy, and law enforcement.
The federal FOIA statute makes those protections part of the disclosure rules. An exemption can support withholding a passage, a name, an attachment, or sometimes an entire document.
An agency generally must reasonably foresee harm to an interest protected by an exemption, or identify a legal prohibition on disclosure. Naming an exemption alone doesn't settle whether withholding is justified.
Federal FOIA also has boundaries. It doesn't cover Congress, federal courts, or state and local governments. Our guide to requesting federal agency records explains how to identify the records holder before choosing a submission route.
National security and separate secrecy laws
Some withholding rests on classification. Other withholding rests on another statute. Those explanations need different checks.
Exemption 1: properly classified information
Exemption 1 protects information properly classified under an executive order concerning national defense or foreign policy. Intelligence sources, military capabilities, and sensitive diplomatic information can fall within it.
The word "security" isn't enough by itself. The information must meet the applicable classification requirements.
We distinguish a classification claim from a general statement that disclosure would be uncomfortable or sensitive. They aren't interchangeable. A document's connection to defense or foreign affairs doesn't automatically protect every sentence.
Exemption 3: information protected by another law
Exemption 3 incorporates qualifying nondisclosure provisions in other federal statutes. Federal tax-return information is a familiar example of information protected by a separate law.
The Justice Department's explanation of Exemption 3 describes this relationship between FOIA and other statutes.
Check which statute the agency cites. That law's terms matter. A response that identifies only "Exemption 3" leaves you without the separate legal basis needed to understand the withholding.
Business information and protected agency discussions
Records about public spending can contain private business information. Agency correspondence can contain protected legal advice. Neither category creates blanket secrecy.
Exemption 4: confidential commercial information
Exemption 4 protects trade secrets and certain confidential commercial or financial information obtained from a person or business.
Examples include proprietary manufacturing methods, confidential cost breakdowns, and sensitive business information submitted during a regulatory review.
A contractor's involvement doesn't make every contract record confidential. Ask what information the agency withheld and why it qualifies for protection. An award amount, a technical formula, and a company's internal pricing calculations are different kinds of information.
We also avoid assuming that public interest in a contract automatically defeats this exemption.
Exemption 5: privileged communications
Exemption 5 can protect qualifying communications within or between agencies that fall under recognized legal privileges. These include attorney-client communications, attorney work product, and some pre-decision deliberations.
An agency lawyer's confidential advice may qualify. So may recommendations exchanged before officials settle a policy.
Calling something a "draft" or "internal email" doesn't establish the privilege. Its content and role matter.
The deliberative-process privilege generally doesn't protect final agency decisions merely because they grew out of internal discussions. It also cannot cover records created 25 years or more before the request. That age limit applies to deliberative-process protection, not every privilege under Exemption 5.
Personal privacy and law-enforcement records
These protections often appear together on released pages. Their overlap doesn't mean they have identical requirements.
Exemption 6: personal information
Exemption 6 protects information in personnel, medical, and similar files when disclosure would cause a clearly unwarranted invasion of personal privacy.
Medical histories, home addresses, and details about individual benefits recipients can qualify. "Similar files" is broader than a folder formally labeled personnel or medical.
The analysis weighs privacy against the public interest in understanding government operations. Curiosity about someone's private life carries a different weight than evidence about an agency's conduct.
We separate those interests before treating a withheld name as an obstacle to accountability.
Exemption 7: law-enforcement information
Exemption 7 applies to information compiled for law-enforcement purposes, subject to six further protections.
It can cover information whose release could interfere with enforcement proceedings or deprive someone of a fair trial. It also protects certain personal information, confidential sources, sensitive investigative techniques or guidelines, and information whose disclosure could endanger someone's life or physical safety.
A response may cite "(b)(7)(A)" for interference with proceedings or "(b)(7)(C)" for personal privacy. The letter after the number matters.
The DOJ guide to FOIA addresses these separate standards.
Closing an investigation doesn't automatically remove every protection. Confidential-source information or safety concerns may remain. Nor does a document's presence in a law-enforcement file automatically justify withholding everything in it.
Exemptions and exclusions are different
An exemption protects information within records covered by FOIA. An exclusion allows an agency, under narrow statutory conditions, to treat certain law-enforcement records as outside FOIA's ordinary requirements.
There are three exclusions. One concerns certain criminal investigations when the subject doesn't know about the investigation and acknowledging the records could interfere with enforcement.
Another concerns criminal law-enforcement informant records requested by a third party using the informant's name or identifying information, unless the informant relationship has been officially confirmed.
The third concerns certain FBI records involving foreign intelligence, counterintelligence, or international terrorism when their existence is classified.
These are limited conditions, not a general permission to hide inconvenient records.
A separate response sometimes called a Glomar response neither confirms nor denies whether records exist. That response can rely on an exemption when acknowledging existence would itself reveal protected information.
We don't treat an ordinary "no responsive records" response as proof that an exclusion was used. An unsuccessful search, a withholding, and a refusal to acknowledge records are different outcomes.
Protected passages should be separated from the rest
Agencies must release reasonably segregable nonexempt information. In plain language, they must disclose material that can reasonably be separated from protected portions.
A report might contain a protected personal identifier alongside a releasable account of an agency decision. Withholding the identifier doesn't automatically justify withholding the account.
You can include a simple request: "Please release all reasonably segregable nonexempt portions."
That wording doesn't guarantee more disclosure. It makes clear that you want separable material even if other portions qualify for protection.
A valid reason to withhold one passage doesn't automatically justify withholding the surrounding page.
When an agency withholds a whole document, check whether its explanation addresses segregability. If it doesn't, that can be a concrete issue to raise in an appeal.
We also check attachments and page numbering. A gap warrants a question, but it doesn't establish improper withholding. The explanation and the record need to be read together.
How to read a withholding notice
Start with the response letter, then compare it with the released files. The letter supplies the agency's position. The pages show where that position was applied.
We look for three things:
- Identify each exemption citation and any subsection, including different citations on the same page.
- Check whether the agency withheld whole records, attachments, or particular passages, and how it explains those decisions.
- Find the appeal deadline, destination, and submission instructions before setting the letter aside.
A notation such as "(b)(6)" points to Exemption 6. It isn't a description of the hidden text.
Keep the original response, files, filenames, and receipt date. Work from copies when annotating documents. That preserves the record of what the agency released.
When checking a news claim, compare the document's title, date, version, and quoted passage. Our guidance on checking firsthand news sources keeps that comparison tied to evidence.
A redaction doesn't confirm that the missing words support the story. It also doesn't show that they contradict it. Report the visible evidence and identify what remains unavailable.
How to challenge a denial
A disagreement is more useful when it identifies a specific problem. Keep the argument tied to the decision and the records.
File an administrative appeal
Federal law requires agencies to allow at least 90 days to appeal an adverse determination. Follow the response letter's deadline, destination, and filing instructions. An informal email exchange may not count as an appeal.
Include the request number, decision date, and disputed issue. Explain why the cited exemption doesn't fit, why additional portions can be separated, or why the explanation doesn't support withholding an entire record.
You can also appeal other adverse determinations, including certain fee decisions and a finding that no responsive records were located. For a search dispute, identify overlooked offices, record descriptions, or other concrete leads.
Keep dispute resolution and legal review separate
The Office of Government Information Services, part of the National Archives and Records Administration, offers FOIA dispute-resolution services. The agency's FOIA Public Liaison can also help address problems.
Seeking help doesn't automatically replace an appeal or preserve its deadline.
DOJ's administrative appeal guidance explains the ordinary 20-working-day determination period for appeals, subject to statutory exceptions.
A missed deadline doesn't make protected information automatically public. Federal court review may be available, but procedural requirements matter. Legal counsel can assess a particular dispute.
Keep the limits visible
FOIA exemptions explain why access may be limited. They don't tell you what the hidden information would establish.
We check the legal basis, the scope of withholding, and the release of separable material before judging the response. If you challenge it, preserve the documents and follow the stated appeal process.
A careful account keeps missing information visible rather than filling the space with assumptions.