I see what you're asking now.
In both US and Canada they're printed on plastic. In Canada there's a narrow window right before release that one can apply for the new vet card. If you miss that window, you're stuck with your old military ID. Mine looks like a dog ate it. I've also got a real old one prior to the plastic that I sometimes use as it has me in combats rather than in formal.
In the states they're a bit more advanced but they're incredible dicks when it comes to replacing them. My buddy's wallet got damaged in a fire with his card and still no replacement, been a year now.