2023 Texas Transportation Code Chapter 21 – Administration of Aeronautics Current as of: 2023 | Check for updates | Other versions Sections Subchapter A General Provisions 21.001 – 21.006 Subchapter B General Powers and Duties 21.051 – 21.072 Subchapter C Aviation Facilities Development and Financial Assistance 21.101 – 21.115 Subchapter D Investigation and Enforcement 21.151 – 21.157