It is only the second time the Justice Department has sued under the law.
He said the department could sue if the state has not begun to comply with recommended changes within 49 days.
Therefore it is unusual for a dispute to reach the stage where the department sues.
Seven years ago, after the town turned down two low-income housing projects, the Justice Department sued.
The Justice Department later sued the school, charging civil rights violations.
Mr. Aponte said the department is suing the station for $50,000.
But when the department and Chancellor failed to reach an accord, the department sued.
The Justice Department is suing to force us to add this picture to the government warning.
The department had negotiated with Passaic to change its voting system, but sued after those talks broke down.
The department sued the five supervisors as well as the county official who oversees elections.