Congressional Reports are part of the law making process and report out reasons why a bill should become a law. In cases where a different version of a bill passes both houses, Congress will issue a Conference Report describing the conference committee's compromises on the final bill. Congressional Documents contain materials ordered to be printed by Congress and can include department/agency reports, committee prints, treaties, the U.S. Constitution, and other materials. All of these are also published in the United States Congressional Serial Set. [Numbers in brackets denote Congessional session]