HB 1496 proposes to amend the Texas Health and Safety Code to allow the use, possession, delivery, or manufacture of testing equipment that identifies the presence of fentanyl, alpha-methylfentanyl, or any derivative or controlled substance analogue of fentanyl. It establishes that the prohibition on drug paraphernalia does not apply to such testing equipment. The proposed legal change applies only to offenses committed on or after September 1, 2025, which is the act's effective date. Offenses committed prior to that date remain governed by the existing law.