Oregon became on Thursday the first U.S. state to allow residents to identify as other than male or female on state driver's licenses, a decision that transgender advocates called a victory.

Under a policy unanimously adopted by the Oregon Transportation Commission, residents can choose to have an "X," for nonspecified, displayed on their drivers' license or identification cards rather than an "M" for male or "F" for female. The move was cheered by supporters as a civil rights victory.

The state's Driver and Motor Vehicle Services Division expects to start offering the option in July.