The Justice Department filed a lawsuit Wednesday alleging that the state of Texas is discriminating against out-of-state college students by allowing undocumented immigrants residing in Texas access to in-state tuition rates.

The law was passed in 2001 to allow young adults who were in the United States illegally to pay reduced in-state tuition if they met certain residency criteria.

The U.S. Department of Justice filed a lawsuit against Texas on Wednesday, accusing the state of discriminating against out-of-state students with its decades-old policy that allows undocumented immigrants to qualify for in-state tuition.