The Brief New THC rules going into effect Friday New rules will ban Delta 8 products, limit THC to 0.3% in consumable hemp products One business owner estimates 30 percent of his store's revenue will be lost with the new rulesNew THC rules are going into effect on Friday that will ban Delta 8 products. Under the new rules, anything other than Delta 9 will be considered a controlled substance. The new regulations also have a 0.3% THC limit for consumable hemp products. State Sen. Charles Perry (R-Lubbock) says he intends to file a bill next legislative session that would ban THC products outright. What's next:The Texas Hemp Business Council says their fight isn't over.