HB 330 amends the Texas Family Code to exempt professionals from mandatory reporting requirements in cases where a pregnant person voluntarily discloses illegal controlled substance use during pregnancy, provided that the individual is enrolled in or has completed a substance abuse treatment program. It also restricts the Texas Department of Family and Protective Services (DFPS) from investigating child abuse or neglect solely based on prenatal drug use if the person is in a treatment program and does not pose an immediate risk to the child.