If you've been scratching your head over the latest Texas THC headlines, you're not alone. What's changing with Texas THC laws on July 31? The latest change primarily affects Delta-8 THC and several other hemp-derived THC variants, including Delta-10 and THCP. Why are some Delta-9 THC gummies still legal in Texas? Hemp-derived Delta-9 THC products containing no more than 0.3% Delta-9 THC by dry weight are generally treated differently under current state and federal hemp laws.