HHC is illegal in Illinois. The Illinois Department of Agriculture recently declared that hemp and its derivatives can’t be used to synthesize intoxicating isomers, such as HHC or delta 8 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.