Idaho HJR 4: What the Nov. 3 Marijuana Amendment Would Do

What is Idaho HJR 4? It is a proposed amendment to the Idaho Constitution, on the Tuesday, Nov. 3, 2026 ballot, that would make the Legislature the only body that can legalize marijuana, narcotics or other psychoactive substances. Status as of Oct. 26, 2026: proposed; voters decide Nov. 3, and nothing changes unless it is approved.

What HJR 4 would do

The one-page resolution would add subsection (2) to Article III, Section 26. It reserves to the Legislature the power to legalize the listed activities involving marijuana, narcotics or other psychoactive substances. Practical effect: an ordinary citizen initiative could no longer supply legalization in place of legislative action. The text says the new subsection takes effect immediately upon adoption by Idaho voters (lines 17–22).

The Idaho Legislature’s published action history records House adoption by 58–10, with two absent, and Senate adoption by 29–6. Those were legislative votes to refer a constitutional amendment; the statewide vote is still ahead. Idaho’s official election site lists the general election for Tuesday, Nov. 3, 2026.

What a Yes or No vote means

• Yes on HJR 4: the constitution would reserve legalization of marijuana and other psychoactive substances to the Legislature.
• No on HJR 4: the constitution stays as it is.
• Either way: HJR 4 does not itself legalize or criminalize anything. It decides who can make that call.

The question is who gets to authorize legalization, rather than whether this measure itself legalizes marijuana. A Yes vote adopts the exclusive legislative authority; a No vote leaves the constitution unchanged.

The other cannabis votes on Nov. 3

Idaho is one of several cannabis questions on the Nov. 3 ballot:

• Massachusetts Question 8 would end adult-use retail sales on Jan. 1, 2028 if approved. See our Question 8 explainer. The official Massachusetts summary states that effective date.
• Houston Proposition A would make enforcement of Class A and Class B misdemeanor marijuana possession the Houston Police Department’s lowest priority, subject to a binding court order, and prohibit its officers from requesting, executing or participating in no-knock search warrants. The city’s official text describes a local enforcement policy; it does not repeal Texas possession law. Background: how the Houston measure reached the ballot.

Thomas and Miggy discussed HJR 4 and the Houston measure on the Oct. 25, 2026 episode of Cannabis Legalization News.

Original source

• Idaho Legislature, 2026 Proposed Constitutional Amendment (HJR 4)

By Thomas Howard, cannabis attorney. Thomas Howard practices cannabis law. General information, not legal or voting advice.