For readers of the "other" thread:
SUBCHAPTER B. REGISTRATION REQUIREMENTS
Sec. 502.040. REGISTRATION REQUIRED; GENERAL RULE. (a) Not more than 30 days after purchasing a vehicle or becoming a resident of this state, the owner of a motor vehicle, trailer, or semitrailer shall apply for the registration of the vehicle for:(1) each registration year in which the vehicle is used or to be used on a public highway; and
http://www.statutes.legis.state.tx.u...htm/TN.502.htm
I'm not your lawyer... if you are a "resident of this state" I read that the State of Texas wants, if not requires, the trailer to be registered in Texas.
Under this section, what we use to transport race cars is a "trailer."