CUI Explorer

Chemical-terrorism Vulnerability Information

In accordance with Section 550(c) of the Department of Homeland Security Appropriations Act of 2007, the following information, whether transmitted verbally, electronically, or in written form, shall constitute CVI, see (1) - (9).

Registry statusNARA & DoD
MarkingCVI
Organizational index groupCritical Infrastructure
Updated2026-05-15

This page exposes extracted CUI registry and authority analysis as crawlable text. The interactive explorer remains the operational workspace for filtering, comparison, and voice-agent aligned study.

Registry comparison

Field NARA Registry DoD Registry
Category description In accordance with Section 550(c) of the Department of Homeland Security Appropriations Act of 2007, the following information, whether transmitted verbally, electronically, or in written form, shall constitute CVI, see (1) - (9). Information that relates to vulnerabilities of high-risk chemical facilities that manufacture, use, store, or otherwise possess certain explosive, reactive, flammable, or toxic chemicals of interest (COI).
Category marking CVI CVI
Banner marking CUI No corresponding field
Basic or Specified Basic + Specified No corresponding field
Authorities 6 USC 121 note, 6 CFR 27 6 CFR 27.400
DoD applicable policies No corresponding field None listed
Required warning statement No corresponding field WARNING: This record contains Chemical-Terrorism Vulnerability Information controlled by 6 CFR 27.400. Do not disclose to persons without a “need to know” in accordance with 6 CFR 27.400(e). Unauthorized release may result in civil penalties or other action. In any administrative or judicial proceeding, this information shall be treated as classified information in accordance with 6 CFR 27.400(h) and (i).
Required dissemination control CUI, CUI//SP-CVI None listed
Examples No corresponding field Security vulnerability assessments, Locally developed "All Hazards Assessment Report", Documents relating to the review and approval of security vulnerability assessments and site security plans, including letters of authorization, Site security plans, Alternative security programs, Documents relating to inspection or audits, Other information developed for chemical facility security purposes
Registry date May 8, 2025 2026-05-15

Authority analysis

Authority title
Registry authority evidence compiled; primary authority text analysis pending
Authorities
Multiple registry authorities
Source currency
NARA last reviewed: May 8, 2025 | DoD detail accessed: 2026-05-15
How the authority operates
NARA registry status: Basic + Specified. Per-authority NARA status values: Basic, Specified. NARA banner marking evidence: CUI, CUI//SP-CVI. The registry evidence is preserved here; detailed primary-law or regulation text analysis remains pending for this category.

Trigger conditions

  • NARA category scope: In accordance with Section 550(c) of the Department of Homeland Security Appropriations Act of 2007, the following information, whether transmitted verbally, electronically, or in written form, shall constitute CVI, see (1) - (9).
  • DoD category scope: Information that relates to vulnerabilities of high-risk chemical facilities that manufacture, use, store, or otherwise possess certain explosive, reactive, flammable, or toxic chemicals of interest (COI).
  • DoD registry-required warning statement: WARNING: This record contains Chemical-Terrorism Vulnerability Information controlled by 6 CFR 27.400. Do not disclose to persons without a “need to know” in accordance with 6 CFR 27.400(e). Unauthorized release may result in civil penalties or other action. In any administrative or judicial proceeding, this information shall be treated as classified information in accordance with 6 CFR 27.400(h) and (i).

Covered information

  • Security vulnerability assessments
  • Locally developed "All Hazards Assessment Report"
  • Documents relating to the review and approval of security vulnerability assessments and site security plans, including letters of authorization
  • Site security plans
  • Alternative security programs
  • Documents relating to inspection or audits
  • Other information developed for chemical facility security purposes
  • Registry-described information: In accordance with Section 550(c) of the Department of Homeland Security Appropriations Act of 2007, the following information, whether transmitted verbally, electronically, or in written form, shall constitute CVI, see (1) - (9).
  • DoD-described information: Information that relates to vulnerabilities of high-risk chemical facilities that manufacture, use, store, or otherwise possess certain explosive, reactive, flammable, or toxic chemicals of interest (COI).

Specified controls

Nara basic or specified
Basic + Specified
Nara authority rows
6 USC 121 note | status: Basic | banner: CUI | sanctions: 6 CFR 27.400(j) || 6 CFR 27 | status: Specified | banner: CUI//SP-CVI | sanctions: 6 CFR 27.400(j)
Nara banner markings
CUI, CUI//SP-CVI
Nara sanctions
6 CFR 27.400(j)
Dod required warning statement
WARNING: This record contains Chemical-Terrorism Vulnerability Information controlled by 6 CFR 27.400. Do not disclose to persons without a “need to know” in accordance with 6 CFR 27.400(e). Unauthorized release may result in civil penalties or other action. In any administrative or judicial proceeding, this information shall be treated as classified information in accordance with 6 CFR 27.400(h) and (i).

Safeguarding and dissemination controls

NARA Registry
CUI, CUI//SP-CVI
DoD Registry
None listed
Authority analysis
No DoD required dissemination control is listed on the registry page. Apply approved limited dissemination controls only when required or permitted by the designating agency or governing authority.
Basic or Specified
Use the registry assertions, NARA authority rows, DoD authorities, DoD policies, warning statements, required dissemination controls, and examples first. Where the cited authority does not specify a handling detail, apply CUI Basic safeguards and dissemination rules so long as they do not conflict with the authority or agency-specific controls.

Related authorities

Authority-by-authority detail

6 USC 121 note

Listed by: NARA Registry, Related authorities

Designation evidence

  • NARA authority row: 6 USC 121 note | status: Basic | banner: CUI.
  • NARA sanctions field: 6 CFR 27.400(j).
  • Related authority evidence: 6 USC 121 note | status: Basic | banner: CUI | sanctions: 6 CFR 27.400(j)

Extracted authority meaning

None listed

Operating conditions

  • NARA category scope used with this authority: In accordance with Section 550(c) of the Department of Homeland Security Appropriations Act of 2007, the following information, whether transmitted verbally, electronically, or in written form, shall constitute CVI, see (1) - (9).
  • 6 USC 121 note | status: Basic | banner: CUI | sanctions: 6 CFR 27.400(j)
  • NARA registry status: Basic + Specified. Per-authority NARA status values: Basic, Specified. NARA banner marking evidence: CUI, CUI//SP-CVI. The registry evidence is preserved here; detailed primary-law or regulation text analysis remains pending for this category.
  • NARA category scope: In accordance with Section 550(c) of the Department of Homeland Security Appropriations Act of 2007, the following information, whether transmitted verbally, electronically, or in written form, shall constitute CVI, see (1) - (9).
  • DoD category scope: Information that relates to vulnerabilities of high-risk chemical facilities that manufacture, use, store, or otherwise possess certain explosive, reactive, flammable, or toxic chemicals of interest (COI).
  • DoD registry-required warning statement: WARNING: This record contains Chemical-Terrorism Vulnerability Information controlled by 6 CFR 27.400. Do not disclose to persons without a “need to know” in accordance with 6 CFR 27.400(e). Unauthorized release may result in civil penalties or other action. In any administrative or judicial proceeding, this information shall be treated as classified information in accordance with 6 CFR 27.400(h) and (i).

Safeguarding and dissemination controls

  • NARA registry control evidence: status Basic; banner marking CUI.
  • Nara basic or specified: Basic + Specified
  • Nara authority rows: 6 USC 121 note | status: Basic | banner: CUI | sanctions: 6 CFR 27.400(j) || 6 CFR 27 | status: Specified | banner: CUI//SP-CVI | sanctions: 6 CFR 27.400(j)
  • Nara banner markings: CUI, CUI//SP-CVI
  • Nara sanctions: 6 CFR 27.400(j)
  • Dod required warning statement: WARNING: This record contains Chemical-Terrorism Vulnerability Information controlled by 6 CFR 27.400. Do not disclose to persons without a “need to know” in accordance with 6 CFR 27.400(e). Unauthorized release may result in civil penalties or other action. In any administrative or judicial proceeding, this information shall be treated as classified information in accordance with 6 CFR 27.400(h) and (i).
  • No DoD required dissemination control is listed on the registry page. Apply approved limited dissemination controls only when required or permitted by the designating agency or governing authority.
  • Use the registry assertions, NARA authority rows, DoD authorities, DoD policies, warning statements, required dissemination controls, and examples first. Where the cited authority does not specify a handling detail, apply CUI Basic safeguards and dissemination rules so long as they do not conflict with the authority or agency-specific controls.

6 CFR 27

Listed by: NARA Registry, Related authorities

Designation evidence

  • NARA authority row: 6 CFR 27 | status: Specified | banner: CUI//SP-CVI.
  • NARA sanctions field: 6 CFR 27.400(j).
  • Related authority evidence: 6 CFR 27 | status: Specified | banner: CUI//SP-CVI | sanctions: 6 CFR 27.400(j)

Extracted authority meaning

None listed

Operating conditions

  • NARA category scope used with this authority: In accordance with Section 550(c) of the Department of Homeland Security Appropriations Act of 2007, the following information, whether transmitted verbally, electronically, or in written form, shall constitute CVI, see (1) - (9).
  • 6 CFR 27 | status: Specified | banner: CUI//SP-CVI | sanctions: 6 CFR 27.400(j)
  • NARA registry status: Basic + Specified. Per-authority NARA status values: Basic, Specified. NARA banner marking evidence: CUI, CUI//SP-CVI. The registry evidence is preserved here; detailed primary-law or regulation text analysis remains pending for this category.
  • NARA category scope: In accordance with Section 550(c) of the Department of Homeland Security Appropriations Act of 2007, the following information, whether transmitted verbally, electronically, or in written form, shall constitute CVI, see (1) - (9).
  • DoD category scope: Information that relates to vulnerabilities of high-risk chemical facilities that manufacture, use, store, or otherwise possess certain explosive, reactive, flammable, or toxic chemicals of interest (COI).
  • DoD registry-required warning statement: WARNING: This record contains Chemical-Terrorism Vulnerability Information controlled by 6 CFR 27.400. Do not disclose to persons without a “need to know” in accordance with 6 CFR 27.400(e). Unauthorized release may result in civil penalties or other action. In any administrative or judicial proceeding, this information shall be treated as classified information in accordance with 6 CFR 27.400(h) and (i).

Safeguarding and dissemination controls

  • NARA registry control evidence: status Specified; banner marking CUI//SP-CVI.
  • Nara basic or specified: Basic + Specified
  • Nara authority rows: 6 USC 121 note | status: Basic | banner: CUI | sanctions: 6 CFR 27.400(j) || 6 CFR 27 | status: Specified | banner: CUI//SP-CVI | sanctions: 6 CFR 27.400(j)
  • Nara banner markings: CUI, CUI//SP-CVI
  • Nara sanctions: 6 CFR 27.400(j)
  • Dod required warning statement: WARNING: This record contains Chemical-Terrorism Vulnerability Information controlled by 6 CFR 27.400. Do not disclose to persons without a “need to know” in accordance with 6 CFR 27.400(e). Unauthorized release may result in civil penalties or other action. In any administrative or judicial proceeding, this information shall be treated as classified information in accordance with 6 CFR 27.400(h) and (i).
  • No DoD required dissemination control is listed on the registry page. Apply approved limited dissemination controls only when required or permitted by the designating agency or governing authority.
  • Use the registry assertions, NARA authority rows, DoD authorities, DoD policies, warning statements, required dissemination controls, and examples first. Where the cited authority does not specify a handling detail, apply CUI Basic safeguards and dissemination rules so long as they do not conflict with the authority or agency-specific controls.

6 CFR 27.400

Listed by: DoD Registry, Related authorities

Designation evidence

  • DoD authority row: 6 CFR 27.400. DoD lists this citation for the category; this DoD detail page does not display a separate Basic/Specified field.
  • Related authority evidence: DoD lists this authority for the category; the linked authority text is extracted below when available.
  • Registry designation context: Basic + Specified, CUI. The linked authority text contains category-scope or applicability language that helps determine when the information falls within this CUI category. The linked authority text contains disclosure, access, protection, release, dissemination, or distribution-control language relevant to handling. The linked authority text contains violation, penalty, sanction, or enforcement language that may affect consequences for mishandling.
  • Registry designation for this category is Basic + Specified with banner CUI.

Extracted authority meaning

  • 6 CFR § 27.400 - Chemical-terrorism vulnerability information. | Electronic Code of Federal Regulations (e-CFR) | US Law | LII / Legal Information Institute
  • Registry designation context: Basic + Specified, CUI. The linked authority text contains category-scope or applicability language that helps determine when the information falls within this CUI category. The linked authority text contains disclosure, access, protection, release, dissemination, or distribution-control language relevant to handling. The linked authority text contains violation, penalty, sanction, or enforcement language that may affect consequences for mishandling.

Operating conditions

  • DoD category scope used with this authority: Information that relates to vulnerabilities of high-risk chemical facilities that manufacture, use, store, or otherwise possess certain explosive, reactive, flammable, or toxic chemicals of interest (COI).
  • DoD lists this authority for the category; the linked authority text is extracted below when available.
  • NARA registry status: Basic + Specified. Per-authority NARA status values: Basic, Specified. NARA banner marking evidence: CUI, CUI//SP-CVI. The registry evidence is preserved here; detailed primary-law or regulation text analysis remains pending for this category.
  • NARA category scope: In accordance with Section 550(c) of the Department of Homeland Security Appropriations Act of 2007, the following information, whether transmitted verbally, electronically, or in written form, shall constitute CVI, see (1) - (9).
  • DoD category scope: Information that relates to vulnerabilities of high-risk chemical facilities that manufacture, use, store, or otherwise possess certain explosive, reactive, flammable, or toxic chemicals of interest (COI).
  • DoD registry-required warning statement: WARNING: This record contains Chemical-Terrorism Vulnerability Information controlled by 6 CFR 27.400. Do not disclose to persons without a “need to know” in accordance with 6 CFR 27.400(e). Unauthorized release may result in civil penalties or other action. In any administrative or judicial proceeding, this information shall be treated as classified information in accordance with 6 CFR 27.400(h) and (i).
  • Extracted authority condition: This section governs the maintenance, safeguarding, and disclosure of information and records that constitute Chemical-terrorism Vulnerability Information (CVI), as defined in § 27.400(b).
  • Extracted authority condition: The distribution limitation statement is: WARNING: This record contains Chemical-terrorism Vulnerability Information controlled by 6 CFR 27.400.
  • Extracted authority condition: 6 CFR § 27.400 - Chemical-terrorism vulnerability information. | Electronic Code of Federal Regulations (e-CFR) | US Law | LII / Legal Information Institute
  • Extracted authority condition: (iii) If received verbally, make reasonable efforts to memorialize such information and mark the memorialized record as specified in § 27.400(f) of this section, and inform the speaker of any determination that such information warrants CVI protection.

Safeguarding and dissemination controls

  • DoD required warning statement: WARNING: This record contains Chemical-Terrorism Vulnerability Information controlled by 6 CFR 27.400. Do not disclose to persons without a “need to know” in accordance with 6 CFR 27.400(e). Unauthorized release may result in civil penalties or other action. In any administrative or judicial proceeding, this information shall be treated as classified information in accordance with 6 CFR 27.400(h) and (i).
  • Nara basic or specified: Basic + Specified
  • Nara authority rows: 6 USC 121 note | status: Basic | banner: CUI | sanctions: 6 CFR 27.400(j) || 6 CFR 27 | status: Specified | banner: CUI//SP-CVI | sanctions: 6 CFR 27.400(j)
  • Nara banner markings: CUI, CUI//SP-CVI
  • Nara sanctions: 6 CFR 27.400(j)
  • Dod required warning statement: WARNING: This record contains Chemical-Terrorism Vulnerability Information controlled by 6 CFR 27.400. Do not disclose to persons without a “need to know” in accordance with 6 CFR 27.400(e). Unauthorized release may result in civil penalties or other action. In any administrative or judicial proceeding, this information shall be treated as classified information in accordance with 6 CFR 27.400(h) and (i).
  • No DoD required dissemination control is listed on the registry page. Apply approved limited dissemination controls only when required or permitted by the designating agency or governing authority.
  • Use the registry assertions, NARA authority rows, DoD authorities, DoD policies, warning statements, required dissemination controls, and examples first. Where the cited authority does not specify a handling detail, apply CUI Basic safeguards and dissemination rules so long as they do not conflict with the authority or agency-specific controls.
  • Extracted authority control: This section governs the maintenance, safeguarding, and disclosure of information and records that constitute Chemical-terrorism Vulnerability Information (CVI), as defined in § 27.400(b).
  • Extracted authority control: (9) Other information developed for chemical facility security purposes that the Secretary, in his or her discretion, determines is similar to the information protected in § 27.400(b)(1) through (8) and thus warrants protection as CVI.
  • Extracted authority control: (1) In any judicial enforcement proceeding of 6 U.S.C. 621 et seq., the Secretary, in his or her sole discretion, may, subject to § 27.400(i)(1)(i), authorize access to CVI for persons necessary for the conduct of such proceedings, including such persons' counsel, provided that no other persons not so authorized shall have access to or be present for the disclosure of such information.
  • Extracted authority control: (iii) If received verbally, make reasonable efforts to memorialize such information and mark the memorialized record as specified in § 27.400(f) of this section, and inform the speaker of any determination that such information warrants CVI protection.
  • Extracted authority control: (7) When a covered person becomes aware that CVI has been released to persons without a need to know (including a covered person under § 27.400(c)(2) ), the covered person must promptly inform the Executive Assistant Director; and
  • Extracted authority control: (6) Except as provided otherwise at the sole discretion of the Secretary, access to CVI shall not be available in any civil or criminal litigation unrelated to the enforcement under 6 U.S.C. 621 et seq..

Authority excerpts

Most relevant extracted authority passage

This section governs the maintenance, safeguarding, and disclosure of information and records that constitute Chemical-terrorism Vulnerability Information (CVI), as defined in § 27.400(b).

Extracted authority passage 2

(9) Other information developed for chemical facility security purposes that the Secretary, in his or her discretion, determines is similar to the information protected in § 27.400(b)(1) through (8) and thus warrants protection as CVI.

Extracted authority passage 3

(1) In any judicial enforcement proceeding of 6 U.S.C. 621 et seq., the Secretary, in his or her sole discretion, may, subject to § 27.400(i)(1)(i), authorize access to CVI for persons necessary for the conduct of such proceedings, including such persons' counsel, provided that no other persons not so authorized shall have access to or be present for the disclosure of such information.

Extracted authority passage 4

(iii) If received verbally, make reasonable efforts to memorialize such information and mark the memorialized record as specified in § 27.400(f) of this section, and inform the speaker of any determination that such information warrants CVI protection.

Extracted authority passage 5

(7) When a covered person becomes aware that CVI has been released to persons without a need to know (including a covered person under § 27.400(c)(2) ), the covered person must promptly inform the Executive Assistant Director; and

Extracted authority passage 6

The distribution limitation statement is: WARNING: This record contains Chemical-terrorism Vulnerability Information controlled by 6 CFR 27.400.