American Airlines is now offering non-binary gender options when you book a ticket.
Now, people can choose between "M," "F," "U" and "X." The options aren't available online quite yet, though. The company told media outlets they're only available to people if they call to book a ticket, or if they call to have the gender option changed after booking online. American says the options should be available online early 2020.
A spokesperson said: "Taking care of our customers and team members is what we do, and we are glad to be able to better accommodate the gender preferences of our travelers and team members."
United Airlines launched a non-binary option in March. And both Southwest and Delta airlines plan to follow suit.
The airlines are making the change to meet TSA requirements. Under those, carriers have to get a person's full name, gender and birthday. And all of that has to match what's on the traveler's government-issued ID. Some states and countries have non-binary gender options on their IDs, so the airlines have to adjust their gender options to line up.