I've never seen any drag strip tech inspector crawl under any car to look at the tag on the tranny shields or blankets
The flywheel shield on my S/P car has the tag where you can see it, it is mounted on the top of the shield, the tranny shield tag can't be seen from outside the car, it is on the top of the shield also
if your racing a stock type torque flite without aluminum drums and the other good internal race parts you need a good shield or blanket
If it is out of date do you care
You can send them back to the maker for recertification or use it and say you thought it current on the date