Texas Transportation Code - TRANSP § 521.294. Department's Determination for License Revocation

(1) is incapable of safely operating a motor vehicle;

(2) has not complied with the terms of a citation issued by a jurisdiction that is a party to the Nonresident Violator Compact of 1977 for a traffic violation to which that compact applies;

(3) has failed to provide medical records or has failed to undergo medical or other examinations as required by a panel of the medical advisory board;

(4) has failed to pass an examination required by the director under this chapter; or

(5) has committed an offense in another state or Canadian province that, if committed in this state, would be grounds for revocation.