When I last departed from Atlanta the TSA would not accept passport cards in their card reading machines. I had to have a passport or a driver's license. Nothing else would be accepted. Barring anyone of those then I would have to manually screened. This was several months ago and I don't know if TSA has fixed this problem. The TSA agent told me that even their TSA identification, a federally issued photo ID, would not work in the machines.you can get a passport card for $30 extra at passport renewal, and that can be used for TSA and other federal identification needing Real ID