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.
Definition of corporation for English Language Learners. : a large business or organization that under the law has the rights and duties of an individual and follows a specific purpose.