TexasCHLforum.com

(B) Subparagraph (A) does not apply to the possession of a firearm— (ii) if the individual possessing the firearm is licensed to do so by the State in which the school zone is located or a political subdivision of the State, and the law of the State or political subdivision requires that, before ...

TX recognizes some permits even though they don't provide exemption from NICS checks... Florida's permit, for instance.