Ill. Admin. Code tit. 92, § 520.70
a) If the proposed yard is to be located in a zoned or unzoned industrial area, the application for a permit for all new yards to be located in a zoned or unzoned industrial area shall include the following:
b) If the proposed yard is to be located outside of a zoned or unzoned industrial area, the application for a permit for all new yards to be located outside of a zoned or unzoned industrial area shall include the following:
4) Plan for Screening.