It's kind of a pain in the butt to update the tables, but here is a source that's mostly current: http://www.newnownext.com/states-third-gender-option-us/08/2019/
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It's kind of a pain in the butt to update the tables, but here is a source that's mostly current: http://www.newnownext.com/states-third-gender-option-us/08/2019/