HHC is probably illegal in Arizona. The situation of this cannabinoid is confusing in this state, as recreational cannabis has been legal since 2020, but at the same time, it is considered a controlled substance.
The only THC permitted and legal for recreational purposes is delta 9, commonly referred to as THC. The Arizona State Administrative Register and Revised Statutes prohibit any isomer of THC, including delta 8 and delta 10.
While Arizona law does not explicitly mention HHC, it would be wise to consider it forbidden as it is an isomer of 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.