Measurable Amount Statute

Driving with Any Measurable Controlled Substance

Under Utah Code Ann. § 41-6-44(8), (9) and § 41-6-44.6, the crime of Driving with any Measurable Controlled Substance in the Body occurs when any person operates or is in physical control of a motor vehicle while having any measurable, illegally consumed controlled substance in the person's body.

The crime of Driving with Measurable Controlled Substance in the Body (Metabolite) under Section 41-6a-517(2) is a class B misdemeanor for a first offense. In many of these cases, the prosecutor and the criminal defense attorney will negotiate a plea deal in which the defendant agrees to plead guilty to this crime in satisfaction of, or as a substitute for, a DUI charge.

A conviction for Driving with any Measurable Controlled Substance in the Body is considered a prior conviction for purposes of enhancing a third or subsequent driving under the influence (DUI)charge to a felony. The provisions in the DUI law regarding screening, assessment, education, and treatment apply to this offense.

What is Utah's Measurable Amount DUI?

Utah Code section 41-6a-517 provides that "[i]n cases not amounting to a violation of Section 41-6a-502 [the DUI statute], a person may not operate or be in actual physical control of a motor vehicle within this state if the person has any measurable controlled substance or metabolite of a controlled substance in the person's body."

The statute unambiguously criminalizes operating or being in actual physical control of a motor vehicle with "any measurable controlled substance or metabolite of a controlled substance in the person's body," regardless of the metabolite's potential, or not, to cause impairment."

The phrase “in cases not amounting to” distinguishes section 41-6a-517 from section 41-6a-502, the DUI statute, by “negat[ing] any requirement to show actual or potential impairment.”

Measurable Amount with Death or Serious Bodily Injury

Under the Measurable Amount Statute, a person who, “in an offense not amounting to a violation of [the Automobile Homicide Statute],” “knowingly and intentionally [has] in the person's body any measurable amount” of a Schedule I or II controlled substance (such as methamphetamine) without a valid prescription, “operates a motor vehicle ... in a negligent manner,” and causes either death or serious bodily injury to another commits a second-degree felony. Id. § 58–37–8(2)(a)(i), (g), (h)(i) (Supp. 2015).

The Measurable Amount Statute makes a distinction between those who use controlled substances without a prescription and those who use them with a prescription. Those who have a prescription for a controlled substance may be charged only under the Automobile Homicide Statute or the DUI With Serious Injury Statute, not the Measurable Amount Statute. See Utah Code Ann. § 58–37–8(2)(a)(i), (g)(i) (exempting from the Measurable Amount Statute those who have a valid prescription).

Therefore, unlike nonprescription users, prescription users can be charged with no more than a third-degree felony and can be convicted only if the State demonstrates that they were intoxicated to a degree that rendered them incapable of safely operating a motor vehicle. See id. § 41–6a–503(2)(a); id. § 76–5–207(2)(a) (2012).

The court recently found that the second-degree designation in subsection (2)(h)(i) in the Measurable Amount Statute violates the uniform operation of laws provision of the Utah Constitution but found that the offense should instead be classified as a third-degree felony. See State v. Ainsworth, 365 P.3d 1227, 1230-31 (Utah Ct. App. 2016).

Finding a Lawyer for DUI with Measurable Amount in Salt Lake City, UT

If you were charged with DUI with a measurable amount under Utah Code Ann. § 41-6-44(8), (9) and § 41-6-44.6, then contact an experienced criminal defense attorney to discuss the case.

If the arresting officer alleged that you operated a motor vehicle while having any measurable, illegally consumed controlled substance your body, then contact us to discuss defenses that might apply to this class B misdemeanor.

Let our Salt Lake City DUI Lawyers put their experience to work for you.

Call (801) 532-5297 today.

DUI Defense — Utah

Frequently Asked Questions: Utah's Measurable Amount Statute

1 What is the difference between a DUI and a Measurable Amount charge in Utah?

While a standard DUI usually requires proof of active impairment or a blood alcohol concentration at or above 0.05%, a measurable amount charge under Utah Code § 41-6a-517 does not require the state to prove you were driving unsafely or feeling the effects of a drug. Under this statute, it is illegal to operate or be in physical control of a vehicle if you have any detectable, measurable trace of an illegally consumed controlled substance or its metabolite in your body.

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2 Can I be charged with a crime if I am not high while driving?

Yes, for most substances, because the law targets the mere presence of the drug or its chemical remains. However, Utah law includes a vital safety valve for cannabis. Under Utah Code § 41-6a-517(2)(b), the law does not apply if the only substance present in your body is 11-nor-9-carboxy-tetrahydrocannabinol (the completely inactive metabolite of marijuana that remains in human fat cells for weeks). If active THC or other illegal substances are detected, you can still face charges even if the impairment window passed days prior.

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3 Is a Measurable Amount conviction considered a prior DUI?

Yes. Under Utah Code § 41-6a-501(2)(a)(iii), a conviction for driving with a measurable amount of a controlled substance counts heavily against your record. For sentence enhancement calculations, it is treated identically to a prior standard DUI. If you face a subsequent impaired driving or metabolite charge within a ten-year lookback window, the past conviction will escalate the penalty tier of your new offense.

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4 Does the Measurable Amount Statute apply to prescription medications?

The statute specifically targets illegal consumption. If you hold a valid, active prescription and take your medication exactly as ordered, you can raise a formal statutory affirmative defense under Utah Code § 41-6a-517(3)(b) to have the charge dismissed. However, a prescription does not excuse unsafe driving; you can still be prosecuted under Utah Code § 41-6a-502 if your prescription drugs render you incapable of safely operating a vehicle.

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5 What are the penalties for a first-time metabolite offense in Utah?

A first-time violation is a Class B Misdemeanor under Utah Code § 41-6a-517(4). Potential consequences include up to six months in jail, up to $1,000 in base court fines plus mandatory state surcharges, and a 120-day administrative driver license suspension. Furthermore, under Utah Code § 41-6a-517(14), the sentencing court is mandated by law to place you on supervised probation and order you to complete a certified drug screening, clinical assessment, and any recommended substance abuse educational series.

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DISCLAIMER: The information in this document is for general educational purposes only and does not constitute legal advice. Consult a qualified attorney regarding your specific situation. Contacting Brown, Bradshaw & Moffat does not create an attorney-client relationship.

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