; and (ii) are readily accessible for retrieval through electronic searches; (C) establish general categories of positions in Federal agencies that constitute senior officers and employees; and (D) allow for the culling of transitory messages, messages that are not records, and personal messages as appropriate. (2) Scope The regulations promulgated under paragraph (1) shall, at a minimum, apply to electronic messages of— (A) the head of each Federal agency; (B) the principal assistant to the head of each Federal agency, including a member of the Armed Forces serving in a comparable position; (C) an officer or employee serving as a deputy, or equivalent position, of an officer, employee, or member described in subparagraph (A) or (B); (D) an employee serving as a staff assistant to an officer, employee, or member described in subparagraph (A) or (B), including a special assistant, confidential assistant, military assistant, and aide; (E) an officer or employee serving in a principal management position at a Federal agency, including the Chief Operating Officer, the Chief Information Officer, the Chief Knowledge Officer, the Chief Technology Officer, the Chief Financial Officer, and an equivalent of such an officer; (F) the director, or equivalent position, of a significant program office of a Federal agency; (G) a principal regional officer of a Federal agency, including a regional administrator, or equivalent position; (H) an officer or employee serving in a position that routinely provide advice to or oversight of a Federal agency, including advice to or oversight of the activities of an officer, employee, or member described in subparagraph (A), (B), (C), (E), (F), or (G), including an officer or employee serving as a general counsel, chief of staff, or inspector general; (I) an officer or employee appointed by the President, by and with the advice and consent of the Senate