Tex. Transp. Code § 521.021 : TRANSPORTATION CODE — VEHICLES AND TRAFFIC — DRIVER'S LICENSES AND PERSONAL IDENTIFICATION CARDS — DRIVER'S LICENSES AND CERTIFICATES — GENERAL LICENSE REQUIREMENTS — License Required TEXT PDF A person, other than a person expressly exempted under this chapter, may not operate a motor vehicle on a highway in this state unless the person holds a driver's license issued under this chapter. Tex. Transp. Code § 521.021 Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.