Physical editions of Congressional hearings are available in various places in the Library. Find the appropriate cite using the various CIS indexes to unpublished U.S. House of Representatives committee hearings in the Reference Collection.
Prior to 1935 -- The U-M Library Catalog Search holds hearing texts 1833-1969, while the Law Library has scattered holdings.
Holdings are in fiche and print.
1935-1969 -- The Law Library carries hearings from these years in print in the closed stacks.