Transportation Code · §547.302

Duty to Display Lights

Duty to Display Lights (§547.302): key points and worked practice questions for Texas peace officer exam preparation.

Key points

  • Required lamps must be lighted at nighttime and when persons and vehicles are not clearly discernible at 1,000 feet
  • At least one lighted lamp on each side of the front of the vehicle (§547.302(c))
  • Headlamp equipment requirements are in §547.321

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Worked examples

Worked example 1

A vehicle on a Texas highway with a defective headlamp at night is most directly addressed by:

  1. Tex. Transp. Code §547.302 (duty to display lights); §547.321 (headlamps required) Correct
  2. Tex. Transp. Code §502.473 (registration)
  3. Tex. Transp. Code §545.421 (fleeing)
  4. Penal Code §38.04 (evading)
Why: Chapter 547 sets equipment standards. §547.302 requires lights at nighttime and when persons and vehicles are not clearly discernible at 1,000 feet; §547.321 requires at least two headlamps. A defective headlamp violates these sections.
Statute: Tex. Transp. Code §547.302, §547.321

Statutory definitions for this topic

Headlamp requirement Tex. Transp. Code §547.302/§547.321
Two functional white headlamps required from sundown to sunrise and during low-visibility conditions. Defective headlamp is a Class C misdemeanor.