A lawsuit challenging a new smoking ban has been filed against Delaware County commissioners.

The new smoking ban is set to go into effect in just two weeks but several American Legion posts, a tobacco store and the county’s Licensed Beverage Association say the ban is unconstitutional.

The ban was approved last month and makes it illegal to smoke in all public buildings, including restaurants and taverns.

A hearing will be held next week on the plaintiffs’ request for a temporary injunction.