Delta 8 THC is not legal according to Vermont state law. But Delta 9 THC is legal.
Why is delta 9 THC legal? read more HERE
The Vermont Hemp Rules were adopted in May 2020 and ban the “use of synthetic cannabinoids in the production of any hemp product or hemp-infused product.” Vermont Hemp Rules § 6.3. So, while naturally occurring delta-8-THC is not barred from hemp or hemp products, Vermont producers cannot manufacture the delta-8-THC cannabinoid from hemp.
Because the Vermont Hemp Rules expressly prohibit the use of synthetic cannabinoids in hemp products and/or hemp-infused product, Vermont Hemp Program registrants that manufacture and/or label products containing delta-8-THC are violating State law and risk enforcement by the Vermont Agency of Agriculture, Food and Markets. In addition, delta-8-THC manufactured from hemp may be a controlled substance under federal and/or State law. As a result, anyone who uses, possesses, or distributes delta-8-THC may face federal and/or State criminal sanctions.
More documentation HERE
Legal document found HERE