10 CFR § 2.902 - Definitions.
As used in this subpart:
(a) Government agency means any executive department, commission, independent establishment, corporation, wholly or partly owned by the United States of America, which is an instrumentality of the United States, or any board, bureau, division, service, office, officer, authority, administration, or other establishment in the executive branch of the Government.
(b) Interested party means a party having an interest in the issue or issues to which particular Restricted Data or National Security Information is relevant. Normally the interest of a party in an issue may be determined by examination of the notice of hearing, the answers and replies.
(c) The phrase introduced into a proceeding refers to the introduction or incorporation of testimony or documentary matter into any part of the official record of a proceeding subject to this part.
(d) National Security Information means information that has been classified pursuant to Executive Order 12356.