Relating to committing the criminal offense of endangering a child, elderly individual, or disabled individual by engaging in certain conduct involving a controlled substance listed in Penalty Group 1-B of the Texas Controlled Substances Act.

HB 166 creates a legal presumption that a person endangers a child, elderly individual, or disabled person when they engage in specific drug-related conduct involving methamphetamine or Penalty Group 1-B drugs (like fentanyl) in the presence of those vulnerable individuals. The bill establishes three key scenarios where this presumption applies: (1) possessing or using these drugs near vulnerable people, (2) having the drugs accessible with evidence of their presence in the vulnerable person's body, or (3) using these drugs unlawfully while with vulnerable people. This changes the legal standard for prosecuting endangerment cases involving drug use around at-risk individuals. The law, signed by the governor on May 24, 2025, takes effect September 1, 2025.