HHC is illegal in Idaho. Unfortunately, this state prohibits HHC, considering it a Schedule I controlled substance. In addition, Idaho also prohibits all hemp-derived CBD products containing any THC.
Most US states don’t have any laws covering HHC. Despite this compound being around for decades, it seems lawmakers haven’t heard of it yet. Because of this, HHC is legal in most but not all US states. Here’s a snapshot of the current state of HHC legality in the United States.