Four months after announcing it would allow a third-gender option for U.S. citizens on their passports, the State Department said Wednesday that it has issued one.

It is the first of its kind, denoted with an ‘X,’ for non-binary, intersex, and gender non-conforming U.S. citizens.

The agency is still preparing to make the option widely available for passports and other documents, such as the consular report of birth abroad.

“I want to reiterate, on the occasion of this passport issuance, the Department of State’s commitment to promoting the freedom, dignity, and equality of all people — including LGBTQI+ persons,” said State Department spokesperson Ned Price in a statement. He did not specify when the passport was issued or to whom.

In June, Secretary of State Antony Blinken announced that Americans could choose which gender is displayed on their passports, no longer needing medical certification if their preference contradicts supporting documents such as birth certificates.

Adding a third-gender option is “technologically complex and will take time for extensive systems updates,” Blinken said at the time. Price said Wednesday the agency is still working on the issue, which they expect to be an option for all regular passport applications early next year.

“The Department also continues to work closely with other U.S. government agencies to ensure as smooth a travel experience as possible for all passport holders, regardless of their gender identity,” he added.

Advocates say harassment by immigration and travel authorities for gender non-conforming people is common. Rodrigo Heng-Lehtinen, deputy executive director of the National Center for Transgender Equality, praised the announcement in June.

“Inaccurate IDs open transgender people up to harassment and discrimination. Reforming U.S. passports is a common-sense way to improve the lives of transgender people,” Heng-Lehtinen said, adding accurate documents are “necessary for travel, banking, starting a new job and school.”

President Joe Biden promised these changes during his 2020 campaign.

“Transgender and non-binary people without identification documents that accurately reflect their gender identity are often exposed to harassment and violence and denied employment, housing, critical public benefits, and even the right to vote,” his campaign website said.