Cannabis events & dates — October 2026
Everything on the cannabis calendar for October 2026: conferences and trade shows, retail sales days, policy and voting dates, and regulatory and tax deadlines. Click any item for details and add-to-calendar links, or switch to the week and day views.
KeyEventSalesPolicyRegulatoryTaxCultureDashed outline = date estimated or pending; confirm with the organizer before booking.
All items in October 2026
10 items- Oct 1, 2026
California DCC pesticide-testing action levels take effect
The Department of Cannabis Control's rulemaking DCC-2025-03-R updates the action levels for pesticide-residue testing in cannabis products. Approved and filed with the Secretary of State July 27, 2026; effective October 1, 2026.
- Oct 7, 2026
IgniteIt Cannabis Capital Conference — California
One-day IgniteIt (formerly Benzinga) cannabis investor and operator conference in Los Angeles. Date listed on the organizer's events hub; venue not yet published.
- Oct 13–15, 2026
CHAMPS Trade Show — Austin
CHAMPS' fall Texas edition at the Palmer Events Center. Dates confirmed on the organizer's site.
- Oct 14–15, 2026
MJ Unpacked — Kansas City
Curated conference and expo for licensed operators, brands and retailers, with investor programming. Main conference and expo October 14–15 at the Sheraton Crown Center; Oaksterdam pre-conference education runs October 13–15.
- Oct 15, 2026
Extended federal return due — C-corps & individuals
Extended 1120 and 1040 returns are due.
- Oct 15, 2026
Nebraska Medical Cannabis Commission — fee-rule hearing and comment deadline
Public hearing (1–4 p.m.) on proposed amendments to the Commission's regulations that primarily set application, registration and renewal fees. Written comments due by 11:59 p.m. the same day.
- Oct 19–21, 2026
National Cannabis Research Conference
Research conference organised by the Institute of Cannabis Research with the National Interdisciplinary Cannabis Symposium — cannabis science, agronomy and health. Dates confirmed on the organizer's site.
- Oct 21–22, 2026
Hall of Flowers — New York
Curated retailer–brand trade show in a new hybrid format: day 1 is trade-only for licensed retailers, brands and ancillary providers; day 2 opens to consumers with ticketed sales. Venue not yet published.
- Oct 26, 2026
State of the Cannabis Industry Conference (Blank Rome, 10th annual)
Blank Rome's tenth annual one-day Boston conference on the state of the industry — legal, finance and policy panels. Monday October 26, 8:30 a.m.–6 p.m., confirmed via the organizer's registration page.
- Oct 31, 2026
Missing an event in October 2026?
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