Wow...glad that MD doesn't have a color test for a drivers license.... Would NJ not give you one if you failed? You can be a 90 year old quad and get a license, but if your color blind no? I have to think for the divers license it wouldn't mater....I hope.
They do test you but only when you first get your license. Mine was just a image of a red light ( OOO ) and you had to tell when it was red, yellow and green but that was all.
I just spoke to one of the guys I used to work with who still works there and he said he can't pass their dots tests either. They show him colored wires and then he can pass. I do rember them pulling that out once but they still try to fool you with shades instead of primary colors.