Sec. 644.002.  CONFLICTS OF LAW.  (a)  A federal motor carrier safety regulation prevails over a conflicting provision of this title applicable to a commercial vehicle operated in interstate commerce.  A rule adopted by the director under this chapter prevails over a conflicting provision of a federal motor carrier safety regulation applicable to a commercial vehicle operated in intrastate commerce.
(b)  A safety rule adopted under this chapter prevails over a conflicting rule adopted by a local government, authority, or state agency or officer, other than a conflicting rule adopted by the Railroad Commission of Texas under Chapter 113, Natural Resources Code.
Added by Acts 1997, 75th Leg., ch. 165, Sec. 30.151(a), eff. Sept. 1, 1997.
Amended by: 
Acts 2005, 79th Leg., Ch. 872 (S.B. 1074), Sec. 1, eff. September 1, 2005.