(a) An employer may not knowingly permit a person to drive a commercial motor vehicle during a period in which:(1) the person has been denied the privilege of driving a commercial motor vehicle;(2) the person is disqualified from driving a commercial motor vehicle;(3) the person, the person's employer, or the vehicle being operated is subject to an out-of-service order in a state; or(4) the person has more than one commercial driver's license, except during the 10-day period beginning on the date the person is issued a driver's license.(b) An employer may not knowingly require a driver to operate a commercial motor vehicle in violation of a federal, state, or local law that regulates the operation of a motor vehicle at a railroad grade crossing.(b-1) An employer who violates Subsection (a) or (b) commits an offense. An offense under this subsection is a Class B misdemeanor.(c) In addition to any penalty imposed under this chapter, an employer who violates this section may be penalized or disqualified under 49 C.F.R. Part 383.(d) For purposes of Subsections (a)(1)(C) and (a)(2), 'commercial motor vehicle' has the meaning assigned by Section

ho violates this section may be penalized or disqualified under 49 C.F.R. Part 383.(d) For purposes of Subsections (a)(1)(C) and (a)(2), 'commercial motor vehicle' has the meaning assigned by Section 644.001. Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995. Amended by Acts 2001, 77th Leg., ch. 941, Sec. 8, eff. Sept. 1, 2001; Acts 2001, 77th Leg., ch. 941, Sec. 9, eff. Sept. 1, 2001.Amended by: Acts 2007, 80th Leg., R.S., Ch. 13 (S.B. 332), Sec. 1, eff. September 1, 2007.Acts 2007, 80th Leg., R.S., Ch. 424 (S.B. 1372), Sec. 9, eff. January 1, 2008.Acts 2009, 81st Leg., R.S., Ch. 782 (S.B. 1093), Sec. 2, eff. September 1, 2009.