Until now, an equal number of men and women constituted the committees and like bodies of the Democratic Party. From now on, the committees "shall be as equally divided as practicable between men and women (determined by gender self-identification) meaning that the variance between men and women in the group cannot exceed 1."
Non-binary members will be recognized. They won't be counted as either male or female, "and the remainder of the delegation shall be equally divided."
"At the root of our diverse party is a commitment to inclusion and opportunity," DNC Chair Tom Perez said in a statement to CNN. "By adopting this amendment, the Democratic National Committee is ensuring every Democrat feels welcome and embraced for who they are. This action reaffirms our solidarity with the LGBTQ community and challenges governments, employers, and organizations across the country to do the same."
This decision follows the recognition of non-binary people in some US states that allow a third gender option on ID cards, driver's licenses, and other official documents.
"I think it's not only significant for the DNC, but I think it's significant for the LGBT community," DNC Secretary Jason Rae told CNN. "The language that was adopted expands our definition of gender -- it includes making sure that we can have gender nonbinary individuals participating fully in our process."
"One of the goals of all the reforms was to really make sure we're building an inclusive party where all people were able to participate in the nominating process," he added. "The addition around language around gender nonbinary individuals really allows us to fill that mission."
This language is new and will take some time to spread among the democratic committees and organizations. The goal is for this new wording to be in place by the time of the Democratic convention in 2020.