Tex. Elec. Code § 112.007

Before accepting an applicant to vote a limited ballot or, in the case of an application for a limited ballot to be voted by mail, before providing a ballot to the applicant, the early voting clerk shall verify, if possible, that the applicant does not have an effective voter registration in the county of new residence. If the person has applied in the county of new residence for a voter registration that will be effective on or before election day, the limited ballot application shall be rejected.