1. Sleeping-cars. Classification of revenues and expenses of sleeping car operations, of auxiliary operations, and of other properties for sleeping car companies, as prescribed by Interstate Commerce Commission in accordance with sec. 20 of act to regulate commerce, effective July 1, 1912. Bookmark Corporate/Agency Authors: Interstate Commerce Commission Publisher: Interstate Commerce Commission Date: 1st revised issue. [Reprint] 1933 SuDoc number: IC 1 sle.5:912/rep.