How do I get on the willcall list?

I WOULD CALL AHEAD MAKE APPOINTMENT A DAY AHEAD

I don't I don't know on the will call list but I do know that I passed by it yesterday on my way to work and there was no line and that was around 12:00 so I guess it has it spurts to get to the DMV there on chinden but if you they close the door at 4:00 the last of the people but if you do get there and it is around close to that time and they close the door they give you a go to the front pass the next day that's all I know