After 1974, car and truck manufacturers transitioned to a molded pressboard style headliner. These automotive headliners have a rigid cardboard backing and are covered with foam backed cloth, which is glued to the headliner board.
1 In the United States, municipality is usually understood as a city, town, village, or other local government unit, formed by municipal charter from the state as a municipal corporation.
A corporation is a company or group of people authorized to act as a single entity (legally a person) and recognized as such in law. Early incorporated entities were established by charter (i.e. by an ad hoc act granted by a monarch or passed by a parliament or legislature).