Before you book: if you work for a federal contractor or hold a security clearance, check with your employer or security officer first — federal standards apply regardless of state law. If you qualify, a Texas-licensed physician registered in CURT will enter your low-THC prescription into the registry (no card, no state fee), and you'll fill it through a licensed dispensing organization with your government photo ID. TCUP is for permanent Texas residents; for patients under 18, a parent or legal guardian should attend.