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National Security Letters — Part 1

1188 pages · May 11, 2026 · Document date: Dec 4, 1981 · Broad topic: General · Topic: National Security Letters · 1018 pages OCR'd
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{MR./MRS./MS]} {COMPLETE NAMES] investigation of a United States person is not conducted solely on the basis of activities protected by the First Amendment to the constitution of the United States. [Certification: The nondisclosure requirement is not an automatic feature of the NSL. If the supporting EC for this NSL included Option 1 (Invoking the Nondisclosure Requirement) then include the language in the following 3 paragraphs in the NSL.] In accordance with 18 U.S.C. §$ 2709(c} (1), I certify that a disclosure of the fact that the FBI has sought or obtained access to the information sought by this letter may endanger the hational security of the United States, interfere with a criminal, counterterrorism, or counterintelligence investigation, interfere with diplomatic relations, or endanger the life or physical safety of a person, Accordingly, 18 U.S.C. § 2709(¢) (1) and (2} prohibits you, or any officer, employee, or agent of yours, from disclosing this letter, other than to those to whom disclosure is necessary to comply with the letter or to an attorney to obtain legal advice or legal assistance with respect to this letter. In accordance with 18 U.S.C. § 2709{c) (3), you are directed to notify any persons to whom you have disclosed this letter that they are also subject to the nondisclosure requirement and are therefore also prohibited from disclosing the letter to anyone else. In accordance with 18 U.S.C. § 2709{c) (4), if the FBI asks for the information, you should identify any person to whom such disclosure has been made or to whom such disclosure will be made. In no instance will you be required to identify any attorney to whom disclosure was made or will be made in order to obtain legal advice or legal assistance with respect to this letter. [Include the following language in ail NSLs.] In accordance with 18 U.S.C. § 3511 (a} and (b){1), you have a right to challenge this letter if compliance would be unreasonable, oppressive, or otherwise unlawful, and you have the right to challenge the nondisclosure requirement set forth above. In accordance with 18 U.S.C. § 3511(c}, an unlawful failure to comply with this letter, including any nondisclosure requirement, may result in the United States bringing an enforcement action.
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