The Mohawks, like tribes in other states, moved quickly to set up their own regulations. That’s OK with state officials, but federal regulators’ position is less clear.

Chemically changing hemp extract to mimic the intoxicating compound in marijuana is becoming more common. And while the resulting CBD products aren’t expected to compete with top-shelf cannabis offerings, chemically-made THC is so cheap to create some fear it could undercut established growers.