Texas Parks and Wildlife Code - PARKS & WILD § 42.020. Bird or Animal Tags: Prohibited Acts

(1) use the same bird or animal tag on more than one bird or animal;

(2) use a bird or animal tag issued in the name of another;

(3) use a tag on a bird or animal for which another tag is specifically required;

(4) kill a bird or animal required to be tagged and fail to immediately attach a properly executed tag to the carcass; or

(5) hunt a bird or animal that requires a tag without having in his immediate possession the tag required to be attached to the carcass of the bird or animal being hunted.