A variety of reference tools are available for accessing the documents and publications of the international intergovernmental organizations. The corresponding microfiche sets are also available. The reference area also contains the current U.S. Code and U.S. Code Annotated , the Code of Federal Regulations and U.S. Statutes at Large . The Ground Floor closes at 1 a.m on Sunday-Thursday. The floor closes at 11 p.m. on Friday and Saturday.
Hours vary during summers, holidays, and semester breaks.