Source: https://www.law.cornell.edu/uscode/text/10/12304
Timestamp: 2019-04-21 20:29:02+00:00

Document:
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 for any named operational mission 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.
a terrorist attack or threatened terrorist attack in the United States that results, or could result, in significant loss of life or property.
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), to provide assistance to either the Federal Government or a State in time of a serious natural or manmade disaster, accident, or catastrophe.
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.
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.
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.
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.
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), 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.
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.).
employment necessary to maintain the national health, safety, or interest.
The Secretary of Defense shall prescribe such policies and procedures as the Secretary considers necessary to carry out this subsection.
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.
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)).
The War Powers Resolution, referred to in subsec. (h), is Pub. L. 93–148, Nov. 7, 1973, 87 Stat. 555, which is classified generally to chapter 33 (§ 1541 et seq.) of Title 50, War and National Defense. For complete classification of this Resolution to the Code, see Short Title note set out under section 1541 of Title 50 and Tables.
2018—Subsec. (c)(1). Pub. L. 115–232 substituted “chapter 13” for “chapter 15”.
2011—Subsec. (a). Pub. L. 112–81 inserted “named” before “operational mission” and substituted “365 consecutive days” for “365 days”.
2008—Subsec. (a). Pub. L. 110–181, § 1063(a)(15), struck out second period at end.
Subsec. (c)(1). Pub. L. 110–181, § 1068(c), substituted “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 15 or section 12406 of this title or, except as provided in subsection (b),” for “Except to perform any of the functions authorized by chapter 15 or section 12406 of this title or by subsection (b), no unit or member of a reserve component may be ordered to active duty under this section”.
2006—Subsec. (a). Pub. L. 109–364, § 522(a), substituted “365 days.” for “270 days”.
Subsec. (c)(1). Pub. L. 109–364, § 1076(c), substituted “Except to perform any of the functions authorized by chapter 15 or section 12406 of this title or by subsection (b), no unit or member of a reserve component may be ordered to active duty under this section” for “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 15 or section 12406 of this title or, except as provided in subsection (b),”.
Subsecs. (i), (j). Pub. L. 109–364, § 522(b), added subsec. (i) and redesignated former subsec. (i) as (j).
2004—Subsec. (a). Pub. L. 108–375 struck out “(other than for training)” after “active duty”.
2003—Subsec. (b)(2). Pub. L. 108–136, § 515(1), substituted “significant” for “catastrophic”.
Subsec. (c)(3). Pub. L. 108–136, § 515(2), added par. (3).
2002—Subsec. (a). Pub. L. 107–296 substituted “of Homeland Security” for “of Transportation”.
Subsecs. (e), (f). Pub. L. 107–296 substituted “of Homeland Security” for “of Transportation”.
1998—Subsec. (a). Pub. L. 105–261, § 511(a)(1)(A), (3)(A), inserted heading and inserted “or that it is necessary to provide assistance referred to in subsection (b)” after “operational mission” in text.
Subsec. (b). Pub. L. 105–261, § 511(a)(1)(D), added subsec. (b). Former subsec. (b) redesignated subsec. (c)(1).
Subsec. (c). Pub. L. 105–261, § 511(a)(1)(B), (C), redesignated subsec. (b) as par. (1) of subsec. (c), inserted subsec. heading, substituted “or, except as provided in subsection (b), to provide” for “, or to provide”, and redesignated former subsec. (c) as par. (2).
Subsecs. (d) to (h). Pub. L. 105–261, § 511(a)(3)(B)–(F), inserted headings.
1997—Pub. L. 105–85, § 511(e)(1), inserted “and certain Individual Ready Reserve members” after “Selected Reserve” in section catchline.
Subsec. (a). Pub. L. 105–85, § 511(b), inserted “or any member in the Individual Ready Reserve mobilization category and designated as essential under regulations prescribed by the Secretary concerned,” after “of this title),”.
Subsec. (c). Pub. L. 105–85, § 511(c), inserted “and the Individual Ready Reserve” after “Selected Reserve” and “, of whom not more than 30,000 may be members of the Individual Ready Reserve” before period at end.
Subsec. (f). Pub. L. 105–85, § 511(d)(1), inserted “or Individual Ready Reserve” after “Selected Reserve”.
Subsec. (g). Pub. L. 105–85, § 511(d)(2), inserted “, or any member of the Individual Ready Reserve,” after “to serve as a unit” in introductory provisions.
Subsec. (i). Pub. L. 105–85, § 511(d)(3), added subsec. (i).
1994—Pub. L. 103–337, § 1662(e)(2), renumbered section 673b of this title as this section.
Subsec. (a). Pub. L. 103–337, § 1675(c)(2)(A), (B), substituted “12302(a)” for “673(a)” and “10143(a)” for “268(b)”.
Pub. L. 103–337, § 511(a)(1), substituted “270 days” for “90 days”.
Subsec. (b). Pub. L. 103–337, § 1675(c)(2)(C), substituted “12406” for “3500 or 8500”.
1986—Subsec. (b). Pub. L. 99–661, § 521(c)(1), substituted “reserve component” for “Reserve component”.
Subsec. (c). Pub. L. 99–661, § 521(a), substituted “200,000” for “100,000”.
Subsec. (e). Pub. L. 99–661, § 521(c)(2), substituted “armed forces” for “Armed Forces”.
Subsec. (f). Pub. L. 99–661, § 521(c)(3), substituted “Congress” for “the Speaker of the House of Representatives and to the President pro tempore of the Senate”.
Subsec. (g)(2). Pub. L. 99–661, § 521(c)(4), substituted “law” for “a concurrent resolution of the Congress”.
Subsec. (i). Pub. L. 99–661, § 521(b), added subsec. (i).
1982—Subsec. (h). Pub. L. 97–295 inserted “(50 U.S.C. 1541 et seq.)” after “the War Powers Resolution”.
1980—Subsec. (c). Pub. L. 96–584 substituted “100,000” for “50,000”.
Pub. L. 101–511, title VIII, § 8132, Nov. 5, 1990, 104 Stat. 1908, provided that, during fiscal year 1991, the President, in authorizing under this section the order to active duty of units and members of the Selected Reserve, could use that authority in the case of orders to active duty in support of operations in and around the Arabian Peninsula and Operation Desert Shield as if “180” were substituted for “90” in subsecs. (a) and (i) of this section.

References: § 1063
 § 1068
 § 522
 § 1076
 § 522
 § 515
 § 515
 § 511
 § 511
 § 511
 § 511
 § 511
 § 511
 § 511
 § 511
 § 511
 § 511
 § 1662
 § 1675
 § 511
 § 1675
 § 521
 § 521
 § 521
 § 521
 § 521
 § 521
 § 8132