This post about the so-called Document Discriminator on driver’s licenses is somewhat off-topic for this blog. However, I find this tidbit of information so interesting that I feel compelled to write about it.
I first presented this information in a Quora answer that I wrote last month. Please see What does the DD on a Michigan driver’s license mean?
DD = Document Discriminator
DD is an abbreviation for Document Discriminator. A number of states started adding this piece of information to their driver’s licenses several years ago. (more…)