; and (2) by striking subsections (b) and (c). D Other elements 2431. Collocation of certain Department of Homeland Security personnel at field locations Not later than 18 months after the date of the enactment of this Act, the Under Secretary of Homeland Security for Intelligence and Analysis shall transfer not less than 40 personnel who are stationed, as of the date of the enactment of this Act, at the Department of Homeland Security headquarters located at Nebraska Avenue Northwest, Washington, District of Columbia, to locations at least 30 miles from such headquarters in order to collocate such personnel with and provide support for Department of Homeland Security operational units from Customs and Border Protection, the Transportation Security Administration, Immigration and Customs Enforcement, or other elements of the Department of Homeland Security. 2432. Framework for roles, missions, and functions of Defense Intelligence Agency (a) In general The Director of National Intelligence and the Secretary of Defense shall jointly establish a framework to ensure the appropriate balance of resources for the roles, missions, and functions of the Defense Intelligence Agency in its capacity as an element of the intelligence community and as a combat support agency. The framework shall include supporting processes to provide for the consistent and regular reevaluation of the responsibilities and resources of the Defense Intelligence Agency to prevent imbalanced priorities, insufficient or misaligned resources, and the unauthorized expansion of mission parameters. (b) Matters for inclusion The framework required under subsection (a) shall include each of the following: (1) A lexicon providing for consistent definitions of relevant terms used by both the intelligence community and the Department of Defense, including each of the following: (A) Defense intelligence enterprise. (B) Enterprise manager. (C) Executive agent. (D) Function. (E) Functional manager. (F) Mission. (G) Mission manager. (H) Responsibility. (I)