40 CFR § 11.1 - Purpose.

---
identifier: "/us/cfr/t40/s11.1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 11.1 - Purpose."
title_number: 40
title_name: "Protection of Environment"
section_number: "11.1"
section_name: "Purpose."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "A"
subchapter_name: "GENERAL"
part_number: "11"
part_name: "SECURITY CLASSIFICATION REGULATIONS PURSUANT TO EXECUTIVE ORDER 11652"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Executive Order 11652 (37 FR 5209, March 10, 1972) and the National Security Directive of May 17, 1972 (37 FR 10053, May 19, 1972)."
regulatory_source: "37 FR 23541, Nov. 4, 1972, unless otherwise noted."
cfr_part: "11"
---


# 11.1 Purpose.

These regulations establish policy and procedures governing the classification and declassification of national security information. They apply also to information or material designated under the Atomic Energy Act of 1954, as amended, as “Restricted Data,” or “Formerly Restricted Data” which, additionally, is subject to the provisions of the Act and regulations of the Atomic Energy Commission.