The ACLU of Massachusetts is challenging a new policy in Holyoke that bans temporary lawn signs during the winter months and prohibits bumper stickers year-round.
Under an ordinance amended by the City Council last month, anyone who displays a temporary sign in their yard or on their vehicle, is subject to fines.
A lawsuit has been filed on behalf of seven Holyoke residents calling for an end to the policy.
An ACLU spokeswoman says courts across the nation, including the U.S. Supreme Court, have affirmed that people have a right to express personal political views through signs displayed on their property.