ARTICLE 4 REGULATION OF VEHICLE AND TRAFFIC
| Jurisdiction | Colorado |
Cross references: For exemption of members of the military forces from traffic regulation, see § 28-3-504; for disposition of fines and penalties under this article, see § 42-1-217; for crimes that involve the operation of motor vehicles, also see §§ 18-3-106, 18-3-205, 18-4-409, 18-4-512, 18-9-107, and 18-9-114 to 18-9-116.5.
42-4-1301. Driving under the influence - driving while impaired - driving with excessive alcoholic content - definitions - penalties. (1)(a) [Editor's note: This version of subsection (1)(a) is effective until March 1, 2022.] A person who drives a motor vehicle or vehicle under the influence of alcohol or one or more drugs, or a combination of both alcohol and one or more drugs, commits driving under the influence. Driving under the influence is a misdemeanor, but it is a class 4 felony if the violation occurred after three or more prior convictions, arising out of separate and distinct criminal episodes, for DUI, DUI per se, or DWAI; vehicular homicide, as described in section 18-3-106 (1)(b), C.R.S.; vehicular assault, as described in section 18-3-205 (1)(b), C.R.S.; or any combination thereof.
(a) [Editor's note: This version of subsection (1)(a) is effective March 1, 2022.] A person who drives a motor vehicle or vehicle under the influence of alcohol or one or more drugs, or a combination of both alcohol and one or more drugs, commits driving under the influence. Driving under the influence is a traffic misdemeanor, but it is a class 4 felony if the violation occurred after three or more prior convictions, arising out of separate and distinct criminal episodes, for DUI, DUI per se, or DWAI; vehicular homicide, as described in section 18-3-106 (1)(b); vehicular assault, as described in section 18-3-205 (1)(b); or any combination thereof.
(b) [Editor's note: This version of subsection (1)(b) is effective until March 1, 2022.] A person who drives a motor vehicle or vehicle while impaired by alcohol or by one or more drugs, or by a combination of alcohol and one or more drugs, commits driving while ability impaired. Driving while ability impaired is a misdemeanor, but it is a class 4 felony if the violation occurred after three or more prior convictions, arising out of separate and distinct criminal episodes, for DUI, DUI per se, or DWAI; vehicular homicide, as described in section 18-3-106 (1)(b), C.R.S.; vehicular assault, as described in section 18-3-205 (1)(b), C.R.S.; or any combination thereof.
(b) [Editor's note: This version of subsection (1)(b) is effective March 1, 2022.] A person who drives a motor vehicle or vehicle while impaired by alcohol or by one or more drugs, or by a combination of alcohol and one or more drugs, commits driving while ability impaired. Driving while ability impaired is a traffic misdemeanor, but it is a class 4 felony if the violation occurred after three or more prior convictions, arising out of separate and distinct criminal episodes, for DUI, DUI per se, or DWAI; vehicular homicide, as described in section 18-3-106 (1)(b); vehicular assault, as described in section 18-3-205 (1)(b); or any combination thereof.
(c) Repealed.
(d) As used in this section, one or more drugs means any drug, as defined in section 27-80-203 (13), C.R.S., any controlled substance, as defined in section 18-18-102 (5), C.R.S., and any inhaled glue, aerosol, or other toxic vapor or vapors, as defined in section 18-18-412, C.R.S.
(e) The fact that any person charged with a violation of this subsection (1) is or has been entitled to use one or more drugs under the laws of this state, including, but not limited to, the medical use of marijuana pursuant to section 18-18-406.3, C.R.S., shall not constitute a defense against any charge of violating this subsection (1).
(f) "Driving under the influence" means driving a motor vehicle or vehicle when a person has consumed alcohol or one or more drugs, or a combination of alcohol and one or more drugs, that affects the person to a degree that the person is substantially incapable, either mentally or physically, or both mentally and physically, to exercise clear judgment, sufficient physical control, or due care in the safe operation of a vehicle.
(g) "Driving while ability impaired" means driving a motor vehicle or vehicle when a person has consumed alcohol or one or more drugs, or a combination of both alcohol and one or more drugs, that affects the person to the slightest degree so that the person is less able than the person ordinarily would have been, either mentally or physically, or both mentally and physically, to exercise clear judgment, sufficient physical control, or due care in the safe operation of a vehicle.
(h) Pursuant to section 16-2-106, C.R.S., in charging the offense of DUI, it shall be sufficient to describe the offense charged as "drove a vehicle under the influence of alcohol or drugs or both".
(i) Pursuant to section 16-2-106, C.R.S., in charging the offense of DWAI, it shall be sufficient to describe the offense charged as "drove a vehicle while impaired by alcohol or drugs or both".
(j) For the purposes of this section, a person is deemed to have a prior conviction for DUI, DUI per se, or DWAI; vehicular homicide, as described in section 18-3-106 (1)(b), C.R.S.; or vehicular assault, as described in section 18-3-205 (1)(b), C.R.S., if the person has been convicted under the laws of this state or under the laws of any other state, the United States, or any territory subject to the jurisdiction of the United States, of an act that, if committed within this state, would constitute any of these offenses. The prosecution shall set forth such prior convictions in the indictment or information.
(k) Repealed.
(2) (a) [Editor's note: This version of subsection (2)(a) is effective until March 1, 2022.] A person who drives a motor vehicle or vehicle when the person's BAC is 0.08 or more at the time of driving or within two hours after driving commits DUI per se. During a trial, if the state's evidence raises the issue, or if a defendant presents some credible evidence, that the defendant consumed alcohol between the time that the defendant stopped driving and the time that testing occurred, such issue shall be an affirmative defense, and the prosecution must establish beyond a reasonable doubt that the minimum 0.08 blood or breath alcohol content required in this paragraph (a) was reached as a result of alcohol consumed by the defendant before the defendant stopped driving. DUI per se is a misdemeanor, but it is a class 4 felony if the violation occurred after three or more prior convictions, arising out of separate and distinct criminal episodes, for DUI, DUI per se, or DWAI; vehicular homicide, as described in section 18-3-106 (1)(b), C.R.S.; vehicular assault, as described in section 18-3-205 (1)(b), C.R.S.; or any combination thereof.
(a) [Editor's note: This version of subsection (2)(a) is effective March 1, 2022.] A person who drives a motor vehicle or vehicle when the person's BAC is 0.08 or more at the time of driving or within two hours after driving commits DUI per se. During a trial, if the state's evidence raises the issue, or if a defendant presents some credible evidence, that the defendant consumed alcohol between the time that the defendant stopped driving and the time that testing occurred, such issue shall be an affirmative defense, and the prosecution must establish beyond a reasonable doubt that the minimum 0.08 blood or breath alcohol content required in this subsection (2)(a) was reached as a result of alcohol consumed by the defendant before the defendant stopped driving. DUI per se is a traffic misdemeanor, but it is a class 4 felony if the violation occurred after three or more prior convictions, arising out of separate and distinct criminal episodes, for DUI, DUI per se, or DWAI; vehicular homicide, as described in section 18-3-106 (1)(b); vehicular assault, as described in section 18-3-205 (1)(b); or any combination thereof.
(a.5) Repealed.
(b) In any prosecution for the offense of DUI per se, the defendant shall be entitled to offer direct and circumstantial evidence to show that there is a disparity between what any tests show and other facts so that the trier of fact could infer that the tests were in some way defective or inaccurate. Such evidence may include testimony of nonexpert witnesses relating to the absence of any or all of the common symptoms or signs of intoxication for the purpose of impeachment of the accuracy of the analysis of the person's blood or breath.
(c) Pursuant to section 16-2-106, C.R.S., in charging the offense of DUI per se, it shall be sufficient to describe the offense charged as "drove a vehicle with excessive alcohol content".
(d)
(I) It is a class A traffic infraction for any person under twenty-one years of age to drive a motor vehicle or vehicle when the person's BAC, as shown by analysis of the person's breath, is at least 0.02 but not more than 0.05 at the time of driving or within two hours after driving. The court, upon sentencing a defendant pursuant to this subparagraph (I), may order, in addition to any penalty imposed under a class A traffic infraction, that the defendant perform up to twenty-four hours of useful public service, subject to the conditions and restrictions of section 18-1.3-507, C.R.S., and may further order that the defendant submit to and complete an alcohol evaluation or assessment, an alcohol education program, or an alcohol treatment program at such defendant's own expense.
(II) A second or subsequent violation of this paragraph (d) is a class 2 traffic misdemeanor.
(3) The offenses described in subsections (1) and (2) of this section are strict liability offenses.
(4) No court shall accept a plea of guilty to a non-alcohol-related or non-drug-related traffic offense or guilty to the offense of UDD from a person charged with DUI or DUI per se; except that the...
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