A number of the biggest commercial airlines in the United States are about to make flying a lot easier for legally recognized non-binary passengers.

According to The Daily Beast, Airlines for America (A4A) has approved a new booking measure for its member airlines that will "allow for ‘unspecified’ and ‘undisclosed’ as [gender] options in addition to ‘male’ or ‘female.'" The decision was made in partnership with the International Air Transport Association (IATA) and is specifically designed to align with gender-neutral identification documents, like state-issued driver's licenses or birth certificates.

The change is slated to go into effect on June 1, 2019.

Airlines owned by A4A currently include Alaska Airlines, American Airlines, United, Southwest, and JetBlue, among others. Delta, which was once owned by A4A but split from the company four years ago, also confirmed to The Daily Beast that it plans to enact a similar ticket reservation policy as part of its "ongoing efforts to accommodate the needs of diverse customers throughout our business."

A4A member airlines will have to individually update their reservation policies to reflect the new measure, enabling non-binary customers to book tickets that accurately reflect their legal gender markers.

In the U.S., a growing number of states and cities—including Oregon, California, Arkansas, and New York City—have begun issuing identification documents with a gender-neutral "X" option instead of a male "M" or female "F."

Back in November 2018, Into reported on A4A failing to quickly update its booking process to accommodate legally non-binary travelers, even years after some of the aforementioned laws were passed. Non-binary people recalled having to bring backup IDs to the airport that reflect the gender they reserved their ticket under, "male" or "female," instead of how they actually identify. (This is in line with the National Center for Transgender Equality's recommendations as a precaution for non-binary people hoping to avoid holdups, confusion, or misgendering at airport security.)

A4A declined to comment to Into on the slow uptake, though The Daily Beast's recent confirmation of the company's plans will hopefully take the stress out of air travel for non-binary and gender non-conforming globetrotters.