These series designations are assigned in the regular way. The unique identifiers are then added to the series designations with no separation if the individual book numbers begin with letters, and are separated by the slash if they begin with numbers. The working committees of Congress such as Appropriations, Judiciary, etc., are grouped under Y 4. An author designation based on the name of the Committee follows the period and is followed by the colon. Where series do occur within the publications of a Committee they have been treated in various ways.
Some examples follow.
Serially Numbered Hearings and Committee Prints. Hearings and Committee prints of some Congressional Committees are numbered as serials within each Congress. These are filed behind the hearings and committee prints bearing letter and number Cutter designation, i.e., to the right on the shelf. Congressional Bills, Documents, and Reports. These numbered series of publications issued by Congress are not given a place in the system by use of lettered symbols but are simply filed at the end of all other classifications by Congress, session, and individual number with numbers representing the series titles.