Iowa’s open container law extends to THC beverages
July 1st, 2025 by Ric Hanson
(Radio Iowa) – Police conducting traffic stops in Iowa can now issue fines if they find an open container of a beverage containing T-H-C in the passenger area of the vehicle. It’s a new law that went into effect today (Tuesday) and those caught violating it are to be fined 260 dollars. Representative Zach Dieken of Granville is a state trooper who led debate of the policy this spring.
“We actually run into this quite frequently,” Dieken said, “so I think this is a good change in the law.” It has long been illegal to have an open or unsealed bottle, can or jar of alcohol in the passenger area of a vehicle. Iowa law now extends to open containers of beverages that contain any amount of T-H-C derived from hemp, a chemical which has intoxicating effects. Representative Jerome Amos Junior of Waterloo says it’s an important change.
“Ensuring that individuals that are driving on the road also, like with alcohol, are not driving impaired,” Amos said. This latest policy on T-H-C drinks passed the legislature with only one “no” vote. Last year the legislature limited the amount of T-H-C from hemp that can be in consumable products produced and sold in Iowa.