EDIT:  Thanks for all the responses everyone.  I ended up falling asleep right after eating dinner, so I didn’t get a chance to respond as I planned.  I’ll be sure to read through everything and keep your thoughts in mind when we next meet to discuss the new form.

Is there a preferred way to address letters for non-binary individuals? We’re designing a new form at work and want to add check boxes for Mr., and Ms., in the name box and i wanted to suggest a third option. I know Mx. is preferred in some areas, but does it have enough recognition in the U.S.? Is there a better option? My bureau would be, I think, the first making a third option available, so we don’t have much guidance from within.