Is CBD Legal in Idaho? State Hemp Rules in 2026

In short

As of November 5, 2026, Idaho's hemp rules are strict. The Idaho State Department of Agriculture (ISDA) says CBD sold in Idaho must have zero percent THC. Under state law, plant material or extracts that contain any THC and do not meet the legal hemp rules are presumed to be marijuana.^{[1, 2]}

A 2026 law, House Bill 879, took effect on July 1, 2026. It places stores and other businesses that offer hemp products for eating, drinking, or inhaling under Idaho's hemp program. ISDA has proposed a retailer license with a $1,000 yearly fee, but that rule was still a proposal when we checked.^{[3, 4, 5]}

Idaho has no medical or adult-use marijuana program. Marijuana is a Schedule I drug under Idaho law.^{[6, 7]}

At a glance

How Idaho defines hemp

Idaho's controlled substances law says "marijuana" does not include hemp that is grown, processed, transported, or held under a license under the 2014 farm bill, the 2018 farm bill, federal hemp rules (7 CFR 990.1 et seq.), or Idaho's approved state plan.^[2]

The same law defines hemp as Cannabis sativa L. and any part of the plant, including seeds, derivatives, extracts, and cannabinoids, with a measured total delta-9 THC concentration of not more than 0.3% on a dry weight or volume basis. Total THC includes both delta-9 THC and THCA.^[2]

Idaho's hemp program law, the Industrial Hemp Research and Development Act, took effect on April 16, 2021, through House Bill 126. It uses a separate definition: delta-9 THC of not more than 0.3% on a dry weight basis, as defined in the 2018 farm bill (P.L. 115-334).^{[4, 11]}

Why ISDA says consumer products must have zero THC

Idaho law creates a presumption. If plant material, resin, or a derivative does not meet the hemp definition, or is held without one of the licenses listed above, and it contains any THC, it is presumed to be marijuana.^[2]

ISDA's official answers are direct. They say "CBD must have zero percent (0%) THC in Idaho." This is the agency's position; the statute does not state a 0% figure. ISDA also says licensed handlers may receive raw hemp with up to 0.3% THC, but all manufactured hemp products must be at 0% THC when they are distributed, including products made for other states.^[1]

ISDA's proposed rule from October 2026 would write this into the rules. It says all manufactured or end products "must contain no detectable THC of any kind," and it defines "prohibited cannabis products" as any product containing THC, except hemp biomass held under a producer license. It was still a proposal as of November 5, 2026.^[5]

Delta-8, THCA flower, and similar products

Idaho's Schedule I lists tetrahydrocannabinols, including synthetic equivalents and isomers with a similar chemical structure. It covers these compounds "regardless of numerical designation of atomic positions." The only hemp exception is for "the permitted amount of tetrahydrocannabinol found in industrial hemp."^[6]

In our reading, this covers delta-8 THC and similar products, and we found no Idaho provision that allows them. Because Idaho counts THCA in total THC, flower with more than 0.3% total THC does not meet the state's hemp definition.^{[2, 6]}

New 2026 rules for hemp retailers

House Bill 879 was signed on April 2, 2026, and took effect on July 1, 2026 (2026 Session Laws, chapter 292). It says businesses offering hemp products meant to be eaten, drunk, or inhaled are subject to Idaho's hemp law. Hulled hemp seed, hemp seed protein powder, and hemp seed oil are excluded. These products must meet the hemp definition in Idaho Code § 37-2701(u) and the THC rule in § 37-2705(d)(29)(i).^{[3, 4]}

When we checked on November 5, 2026, ISDA's official answers still said ISDA is not requiring licenses for retailers. ISDA's proposed rule to license retailers, dated August 27, 2026, was published in the Idaho Administrative Bulletin on October 7, 2026, and comments were due by October 28, 2026.^{[1, 5]}

The proposed rule would require a license for each physical, mobile, online, or digital location. It sets a $100 yearly application fee and a $1,000 yearly license fee. ISDA would inspect licensed retailers every year and could take samples. Retailers could not sell any product with THC and would keep sales records for three years. The bill's statement of purpose says any fee would have to be approved by the Legislature.^{[5, 12]}

House Bill 772, which also took effect on July 1, 2026, protects hemp growers who grow for grain or fiber. They do not commit a negligent violation if they made reasonable efforts and their hemp tests at no more than 1% total THC.^{[4, 13]}

Marijuana, medical cannabis, and the 2026 ballot

Marijuana is listed as a Schedule I hallucinogenic substance in Idaho. The marijuana definition leaves out FDA-approved drug products that contain CBD with no more than 0.1% residual THC, as well as nabiximols.^{[2, 6]}

The Idaho Medical Cannabis Act and the Decriminalize Cannabis Now Initiative did not qualify for the November 3, 2026, ballot. The Secretary of State says they did not turn in enough valid signatures, both in total and across the required legislative districts.^[7]

House Joint Resolution 4 was on the November 3, 2026, ballot. A "yes" vote supports giving only the Legislature the power to legalize marijuana, narcotics, or other psychoactive substances. A "no" vote keeps the ability of citizens to pass such laws by initiative. Official results were not yet available as of November 5, 2026.^[7]

How the federal hemp changes may affect Idaho

Federal Public Law 119-37 rewrites the federal hemp definition. It counts total THC, including THCA. It also leaves out cannabinoids that the plant cannot naturally make, cannabinoids made outside the plant, and final products with more than 0.4 mg of total THC per container. Under Public Law 119-103, the part on cannabinoids that the plant cannot naturally make applies from November 12, 2026. The rest is set for December 11, 2026, unless Congress delays it again.^{[9, 10]}

This is our reading, not an official statement: Idaho's own definition already counts THCA, and ISDA says finished products must have zero THC, so the federal change is unlikely to loosen Idaho's rules. Idaho's hemp program law refers to the 2018 farm bill by its public law number (P.L. 115-334), which points to a fixed law. Idaho's hemp exclusion still depends on licenses under federal law and USDA rules, so federal changes may affect Idaho growers and handlers. We found no Idaho guidance on this as of November 5, 2026.^{[1, 2, 4, 9]}

What changes next

1. November 12, 2026

   Federal change on cannabinoids that plants cannot naturally make

   From November 12, 2026, the federal hemp definition leaves out cannabinoids that the plant cannot naturally make. ISDA already says finished hemp products may not contain THC.^{[1, 9, 10]}

2. December 11, 2026

   Rest of the federal hemp change

   The federal 0.4 mg per container limit is set for December 11, 2026, unless Congress delays it again. ISDA's zero-THC position is stricter.^{[1, 9, 10]}

3. 2027

   Retailer license rule (start date not set)

   ISDA's proposed retailer license and fees are not final. The bill's statement of purpose says any fee would need approval by the Legislature, so the rule's start date was not known when we checked. We list 2027 because, in our reading, that approval may come no earlier than the next legislative session.^{[5, 12]}

Who regulates hemp and CBD

• Idaho State Department of Agriculture (Hemp Program): Licenses hemp growers and handlers, oversees businesses offering ingestible or inhalable hemp products, and writes the hemp rules.
• Idaho Secretary of State (VoteIdaho): Publishes ballot initiatives, constitutional amendments, and election information.

Timeline

1. April 16, 2021

   House Bill 126 signed and in effect

   The Industrial Hemp Research and Development Act (2021 Session Laws, chapter 242) allows licensed hemp growing, processing, and transport. It also defines hemp by total THC, counting THCA.^{[2, 4, 11]}

2. April 2, 2026

   House Bills 879 and 772 signed

   The governor signs both hemp bills. Both take effect on July 1, 2026.^{[3, 13]}

3. July 1, 2026

   Hemp retailers come under the hemp law

   Businesses offering hemp products for eating, drinking, or inhaling become subject to Idaho's hemp law. Grain and fiber growers get a 1% total THC safe harbor from negligent violations.^{[3, 4, 13]}

4. October 7, 2026

   Retailer license rule proposed

   ISDA publishes a proposed rule with a retailer license, yearly inspections, and a $1,000 yearly license fee. A public hearing was set for October 20, 2026.^[5]

Sources

Other states

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About this page

This page is a plain summary of official texts; it is meant to inform and is not a substitute for legal advice. Rules can change and differ from place to place: before you decide, we suggest checking the official text and, if needed, talking to a lawyer. If you spot a change or an error, let us know through our contact form.