§ 911. Art. 111. Drunken or reckless operation of a vehicle, aircraft, or vessel

(a) Any person subject to this chapter who—

(1) operates or physically controls any vehicle, aircraft, or vessel in a reckless or wanton manner or while impaired by a substance described in section 912a(b) of this title (article 112a(b)), or

(2) operates or is in actual physical control of any vehicle, aircraft, or vessel while drunk or when the alcohol concentration in the person’s blood or breath is equal to or exceeds the applicable limit under subsection (b),

shall be punished as a court-martial may direct.

(b)

(1) For purposes of subsection (a), the applicable limit on the alcohol concentration in a person’s blood or breath is as follows:

(A) In the case of the operation or control of a vehicle, aircraft, or vessel in the United States, such limit is the lesser of—

(i) the blood alcohol content limit under the law of the State in which the conduct occurred, except as may be provided under paragraph (2) for conduct on a military installation that is in more than one State; or

(ii) the blood alcohol content limit specified in paragraph (3).

(B) In the case of the operation or control of a vehicle, aircraft, or vessel outside the United States, the applicable blood alcohol content limit is the blood alcohol content limit specified in paragraph (3) or such lower limit as the Secretary of Defense may by regulation prescribe.

(2) In the case of a military installation that is in more than one State, if those States have different blood alcohol content limits under their respective State laws, the Secretary may select one such blood alcohol content limit to apply uniformly on that installation.

(3) For purposes of paragraph (1), the blood alcohol content limit with respect to alcohol concentration in a person’s blood is 0.10 grams of alcohol per 100 milliliters of blood and with respect to alcohol concentration in a person’s breath is 0.10 grams of alcohol per 210 liters of breath, as shown by chemical analysis.

(4) In this subsection:

(A) The term “blood alcohol content limit” means the amount of alcohol concentration in a person’s blood or breath at which operation or control of a vehicle, aircraft, or vessel is prohibited.

(B) The term “United States” includes the District of Columbia, the Commonwealth of Puerto Rico, the Virgin Islands, Guam, and American Samoa and the term “State” includes each of those jurisdictions.

(Aug. 10, 1956, ch. 1041, 70A Stat. 72; Pub. L. 99–570, title III, § 3055, Oct. 27, 1986, 100 Stat. 3207–76; Pub. L. 102–484, div. A, title X, § 1066(a)(1), Oct. 23, 1992, 106 Stat. 2506; Pub. L. 103–160, div. A, title V, § 576(a), Nov. 30, 1993, 107 Stat. 1677; Pub. L. 107–107, div. A, title V, § 581, Dec. 28, 2001, 115 Stat. 1123; Pub. L. 108–136, div. A, title V, § 552, Nov. 24, 2003, 117 Stat. 1481.)

Historical And Revision

Historical and Revision Notes
Revised section	Source (U.S. Code)	Source (Statutes at Large)
911	50:705.	May 5, 1950, ch. 169, § 1 (Art. 111), 64 Stat. 139.

Amendments

Amendments

2003—Subsec. (a)(2). Pub. L. 108–136, § 552(1), substituted “is equal to or exceeds” for “is in excess of”.

Subsec. (b)(1)(A). Pub. L. 108–136, § 552(2)(A), amended subpar. (A) generally. Prior to amendment, subpar. (A) read as follows: “In the case of the operation or control of a vehicle, aircraft, or vessel in the United States, such limit is the blood alcohol content limit under the law of the State in which the conduct occurred, except as may be provided under paragraph (2) for conduct on a military installation that is in more than one State and subject to the maximum blood alcohol content limit specified in paragraph (3).”

Subsec. (b)(1)(B), (3). Pub. L. 108–136, § 552(2)(B), struck out “maximum” before “blood alcohol content specified” in par. (1)(B) and before “blood alcohol content” in par. (3).

Subsec. (b)(4)(A). Pub. L. 108–136, § 552(2)(C), substituted “amount of alcohol concentration in a person’s blood or breath at which operation or control of a vehicle, aircraft, or vessel is prohibited.” for “maximum permissible alcohol concentration in a person’s blood or breath for purposes of operation or control of a vehicle, aircraft, or vessel.”

2001—Pub. L. 107–107 designated existing provisions as subsec. (a), substituted “in excess of the applicable limit under subsection (b)” for “0.10 grams or more of alcohol per 100 milliliters of blood or 0.10 grams or more of alcohol per 210 liters of breath, as shown by chemical analysis” in par. (2), and added subsec. (b).

1993—Par. (2). Pub. L. 103–160 inserted “or more” after “0.10 grams” in two places.

1992—Pub. L. 102–484 substituted “operation of a vehicle, aircraft, or vessel” for “driving” in section catchline and amended text generally. Prior to amendment, text read as follows: “Any person subject to this chapter who operates any vehicle while drunk, or in a reckless or wanton manner, or while impaired by a substance described in section 912a(b) of this title (article 112a(b)), shall be punished as a court-martial may direct.”

1986—Pub. L. 99–570 inserted “or while impaired by a substance described in section 912a(b) of this title (article 112a(b)),”.

Effective Date Of Amendment

Effective Date of 1993 Amendment

Pub. L. 103–160, div. A, title V, § 576(b), Nov. 30, 1993, 107 Stat. 1677, provided that: “The amendments made by subsection (a) [amending this section] shall take effect as if included in the amendment to section 911 of title 10, United States Code, made by section 1066(a)(1) of Public Law 102–484 on October 23, 1992.”

Effective Date of 1992 Amendment

Amendment by Pub. L. 102–484 effective Oct. 23, 1992, and applicable with respect to offenses committed on or after that date, see section 1067 of Pub. L. 102–484, set out as a note under section 803 of this title.