10 U.S.C. § 12304

(a) Authority .— Notwithstanding the provisions of section 12302(a) or any other provision of law, when the President determines that it is necessary to augment the active forces or that it is necessary to provide assistance referred to in subsection (b), he may authorize the Secretary of Defense and the Secretary of Homeland Security with respect to the Coast Guard when it is not operating as a service in the Navy, without the consent of the members concerned, to order any unit, and any member not assigned to a unit organized to serve as a unit of the Selected Reserve (as defined in section 10143(a) of this title ), or any member in the Individual Ready Reserve mobilization category and designated as essential under regulations prescribed by the Secretary concerned, under their respective jurisdictions, to active duty for not more than 365 consecutive days. (b) Support for Responses to Certain Emergencies .— The authority under subsection (a) includes authority to order a unit or member to active duty to provide assistance in responding to an emergency involving— (1) a use or threatened use of a weapon of mass destruction; or (2) a terrorist attack or threatened terrorist attack in the United States that results, or could result, in significant loss of life or property. (c) Authority Relating to Significant Cyber Incidents .— When the Secretary of Defense or the Secretary of the department in which the Coast Guard is operating determines that it is necessary to augment the active armed forces for the response of the Department of Defense or other department under which the Coast Guard is operating, respectively, to a covered incident, such Secretary may, without the consent of the member affected, order any unit, and any member not assigned to a unit organized to serve as a unit of the Selected Reserve (as defined in section 10143(a) of this title ), under the respective jurisdiction of such Secretary, to active duty for not more than 365 consecutive days. (d) Limitations .— (1) No unit or member of a reserve component may be ordered to active duty under this section to perform any of the functions authorized by chapter 13 or section 12406 of this title or, except as provided in subsection (b) or subsection (c), to provide assistance to either the Federal Government or a State in time of a serious natural or manmade disaster, accident, or catastrophe. (2) Not more than 200,000 members of the Selected Reserve and the Individual Ready Reserve may be on active duty under this section at any one time, of whom not more than 30,000 may be members of the Individual Ready Reserve. (3) No unit or member of a reserve component may be ordered to active duty under this section to provide assistance referred to in subsection (b) unless the President determines that the requirements for responding to an emergency referred to in that subsection have exceeded, or will exceed, the response capabilities of local, State, and Federal civilian agencies. (e) Exclusion From Strength Limitations .— Members ordered to active duty under this section shall not be counted in computing authorized strength in members on active duty or members in grade under this title or any other law. (f) Policies and Procedures .— The Secretary of Defense and the Secretary of Homeland Security shall prescribe such policies and procedures for the armed forces under their respective jurisdictions as they consider necessary to carry out this section. (g) Notification of Congress .— Whenever the President authorizes the Secretary of Defense or the Secretary of Homeland Security to order any unit or member of the Selected Reserve or Individual Ready Reserve to active duty, under the authority of subsection (a) or subsection (c), he shall, within 24 hours after exercising such authority, submit to Congress a report, in writing, setting forth the circumstances necessitating the action taken under this section and describing the anticipated use of these units or members. (h) Termination of Duty .— (1) Whenever any unit of the Selected Reserve or any member of the Selected Reserve not assigned to a unit organized to serve as a unit, or any member of the Individual Ready Reserve, is ordered to active duty under authority of subsection (a), the service of all units or members so ordered to active duty may be terminated by— (A) order of the President; or (B) law. (2) Whenever any unit of the Selected Reserve or any member of the Selected Reserve not assigned to a unit organized to serve as a unit is ordered to active duty under authority of subsection (c), the service of all units or members so ordered to active duty may be terminated by— (A) order of the Secretary of Defense or, with respect to the Coast Guard, the Secretary of the Department in which the Coast Guard is operating; or (B) law. (i) Relationship to War Powers Resolution .— Nothing contained in this section shall be construed as amending or limiting the application of the provisions of the War Powers Resolution ( 50 U.S.C. 1541 et seq.). (j) Considerations for Involuntary Order to Active Duty .— (1) In determining which members of the Selected Reserve and Individual Ready Reserve will be ordered to duty without their consent under this section, appropriate consideration shall be given to— (A) the length and nature of previous service, to assure such sharing of exposure to hazards as the national security and military requirements will reasonably allow; (B) the frequency of assignments during service career; (C) family responsibilities; and (D) employment necessary to maintain the national health, safety, or interest. (2) The Secretary of Defense shall prescribe such policies and procedures as the Secretary considers necessary to carry out this subsection. (k) Definitions .— In this section: (1) The term “covered incident” means— (A) a cyber incident involving a Department of Defense information system, or a breach of a Department of Defense system that involves personally identifiable information, that the Secretary of Defense determines is likely to result in demonstrable harm to the national security interests, foreign relations, or the economy of the United States, or to the public confidence, civil liberties, or public health and safety of the people of the United States; (B) a cyber incident involving a Department of Homeland Security information system, or a breach of a Department of Homeland Security system that involves personally identifiable information, that the Secretary of Homeland Security determines is likely to result in demonstrable harm to the national security interests, foreign relations, or the economy of the United States or to the public confidence, civil liberties, or public health and safety of the people of the United States; (C) a cyber incident, or collection of related cyber incidents, that the President determines is likely to result in demonstrable harm to the national security interests, foreign relations, or economy of the United States or to the public confidence, civil liberties, or public health and safety of the people of the United States; or (D) a significant incident declared pursuant to section 2233 of the Homeland Security Act of 2002 ( 6 U.S.C. 677b ). (2) The term “Individual Ready Reserve mobilization category” means, in the case of any reserve component, the category of the Individual Ready Reserve described in section 10144(b) of this title . (3) The term “weapon of mass destruction” has the meaning given that term in section 1403 of the Defense Against Weapons of Mass Destruction Act of 1996 ( 50 U.S.C. 2302(1) ).