Is weed legal in Utah?

Recreational status

Recreational cannabis is not legal in Utah. (Utah Code Section 76-18-207: Unlawfully Possessing or Using a Controlled Substance or Controlled Substance Analog)

Possessing or using a controlled substance, which includes marijuana, is unlawful unless obtained under a valid prescription or order, directly from a practitioner, or as otherwise authorized by Title 58, Chapter 37. No registered source creates an adult-use exception.

Utah's statute turns on authorization rather than on quantity, so what matters is whether you hold one and not how much you are carrying. The medical cannabis card is the authorization the state offers, and no adult version of it exists.

Medical status

A full medical cannabis program runs in Utah, serving patients the program registers. (Utah Code Section 26B-4-201: Definitions (Cannabinoid Research and Medical Cannabis))

'Medical cannabis' covers cannabis (full-strength, unprocessed flower) in a medicinal dosage form, a cannabis product (0.3% or more THC) in a medicinal dosage form, or a low THC product (under 0.3% THC) in a medicinal dosage form -- not limited to a low-THC preparation. Section 26B-4-216 confirms this is a real, protected legal pathway: a medical cannabis cardholder who possesses cannabis or a cannabis product in compliance with the part enjoys a rebuttable presumption of legal possession and no probable cause arises solely from that possession.

Utah's program covers unprocessed flower as well as processed products, so a card is not limited to a low-THC preparation. A cardholder who stays inside the rules carries a rebuttable presumption of lawful possession, and that possession on its own gives an officer no probable cause.

Hemp-derived products

Utah permits the sale of hemp-derived products and limits which ones. (Utah Code Section 58-37-403: Exemption for Possession or Distribution of a Cannabinoid Product, Expanded Cannabinoid Product, or Transportable Industrial Hemp Concentrate)

'Cannabinoid product' (at least 10 units CBD per 1 unit THC) and 'expanded cannabinoid product' (less than 10:1) are exempt from marijuana/THC penalties only 'to the extent that' possession or distribution complies with Section 26B-4-212 (a cross-referenced compliance requirement, not registered here). 'Transportable industrial hemp concentrate' -- a concentrate derived from cannabis under 0.3% THC at harvest, itself concentrated to under 20% THC -- is exempt only if handled under rules adopted under Section 4-41-103.1(1)(e) or destroyed. Neither exemption is unconditional.

Utah's exemptions come with conditions attached, so a cannabinoid product sits outside the marijuana penalties only as far as its handling follows the section the exemption points at. The state sorts these by ratio, keeping a product with at least ten parts CBD to one part THC apart from anything below that line.

Home cultivation

Utah allows nobody to grow cannabis at home. (Utah Code § 76-18-208. Unlawfully producing, manufacturing, or dispensing a controlled substance or counterfeit substance)

Producing or manufacturing marijuana without authorization is a third degree felony (a second or subsequent conviction is a second degree felony). Section 4-41a-201(1) separately requires a department-issued license to operate a 'cannabis production establishment,' with no personal or patient home-grow exception in any registered source. A home-grown plant would also be unauthorized possession under Section 76-18-207.

Growing without authorization is a felony in Utah, and a repeat conviction moves it up a degree. A card does not reach this: the only lawful grower is a licensed cannabis production establishment, so a patient's plant is both unlicensed production and unauthorized possession.

Possession and purchase limits

The possession limit, as Utah states it: A medical cannabis cardholder may possess up to 'the legal dosage limit' of unprocessed cannabis or a cannabis product in medicinal dosage form; possessing more than that, up to twice the limit, is an infraction (a class B misdemeanor and $1,000 fine for a second or subsequent offense); more than twice the limit is subject to the general controlled-substance penalties. A person without a medical cannabis card may not lawfully possess any amount: under Section 76-18-207, possessing marijuana is a class B misdemeanor at under 100 pounds and a second degree felony at 100 pounds or more. (Utah Code Section 26B-4-216: Medical Cannabis Card -- Patient and Designated Caregiver Requirements -- Rebuttable Presumption)

Utah Code 26B-4-201(23) defines the legal dosage limit as an amount sufficient for 30 days of treatment on the recommending provider's dosing guidelines, and in any case not exceeding 113 grams by weight for unprocessed cannabis in a medicinal dosage form, with a separate cap on active THC for a cannabis product in a medicinal dosage form. This section and Section 76-18-207 (the register's two sources for this question) both use the term 'legal dosage limit' without stating it in figures; the figures themselves -- 113 grams by weight for unprocessed cannabis, or a quantity containing more than 20 grams of active tetrahydrocannabinol for a cannabis product, sufficient for 30 days of treatment -- are defined at Section 26B-4-201(23), which is registered for other questions, not this one. Flagged for the register rather than cited here.

On buying, Utah states: An individual with a medical cannabis card may purchase, in any one 28-day period, up to 'the legal dosage limit' of unprocessed cannabis or a cannabis product in medicinal dosage form. A recommending medical provider may petition to waive the 28-day period, for up to 180 days, for a cardholder with a terminal illness and a life expectancy of six months or less, for palliative purposes. (Utah Code Section 26B-4-245: Purchasing and Use Limitations)

Utah Code 26B-4-201(23) defines the legal dosage limit as an amount sufficient for 30 days of treatment on the recommending provider's dosing guidelines, and in any case not exceeding 113 grams by weight for unprocessed cannabis in a medicinal dosage form, with a separate cap on active THC for a cannabis product in a medicinal dosage form. As with possession_limit, this section states the cap only as 'the legal dosage limit,' a term this section does not itself quantify; the figures (113 grams unprocessed, or a cannabis product containing more than 20 grams of active THC) are defined at Section 26B-4-201(23), registered for other questions, not this one.

The cited sections lean on one phrase, 'legal dosage limit', without printing a figure for it, and what it comes to follows the dosing guidance your recommending provider sets. Buying runs on a 28-day clock, and possessing over the limit starts as an infraction before the heavier penalties begin.

Minimum age

There is no recreational channel in Utah, so no recreational age applies. (Utah Code Section 76-18-207: Unlawfully Possessing or Using a Controlled Substance or Controlled Substance Analog)

Null because Utah has no adult-use channel; see adult_use_status.

You must be 18 or over to hold a card and buy for yourself. (Utah Code § 26B-4-213. Medical cannabis patient card -- Medical cannabis guardian card -- Conditional medical cannabis card -- Application -- Fees -- Studies)

An individual is eligible for a medical cannabis patient card -- held and used by the patient personally -- at 21 outright, or at 18, 19, or 20 if the individual petitions the Compassionate Use Board and the Board recommends department approval. Below 18, an individual is a minor who cannot hold a patient card directly: the department instead issues a 'provisional patient card' automatically once the minor's parent or legal guardian holds, or is eligible for, a medical cannabis guardian card, or has designated an eligible caregiver -- the guardian, not the minor, controls access. Eighteen is therefore the youngest age at which a patient can hold their own card, even though 18-to-20-year-olds face an additional Board-petition step that a 21-year-old does not.

Between 18 and 20 you have an extra step: the Compassionate Use Board has to hear your petition and recommend approval, which a 21-year-old skips. A younger patient does not hold their own card at all, and the parent or guardian holding the guardian card controls access to the provisional one the state issues instead.

Where you can buy

You can buy lawfully from a licensed delivery service and a licensed medical dispensary. (Utah Code § 4-41a-1101. Operating requirements -- General [medical cannabis pharmacy])

A home delivery medical cannabis pharmacy is a medical cannabis pharmacy the department authorises, as part of its licence, to deliver medical cannabis shipments. A medical cannabis pharmacy is a physical, licensed retail location: entry is barred to anyone who is not a medical cannabis pharmacy agent, a pharmacy medical provider, a medical cannabis cardholder, or a department inspector. Section 76-18-207 (the register's other source for this question) establishes no adult-use channel: marijuana possession without authorization is unlawful. Section 58-37-403's cannabinoid-product and hemp-concentrate exemptions (registered for hemp_product_status, not this question) may bear on a hemp-derived retail channel; flagged for the register rather than added here.

Utah calls the store a medical cannabis pharmacy, and its floor is closed to anyone who is not a cardholder, a pharmacy agent, a pharmacy medical provider or a state inspector. Delivery runs off that same license, which the state can authorize a pharmacy to add so it can send a shipment to you.

The Utah store list names every licensed location this site holds a record for.

Federal law applies here too, and it is not the same. Read what federal law says about weed.