Publisher
- Prints Division1
- Prints and Photographs Division4
- Prints, Division of1
- Priorities Division4
- Prison Industries Reorganization Administration26
- Prisons Bureau426
- Private Land Claims Committee42
- Private Land Claims Committee (House)3
- Private Land Claims, Committee on4
- Private Laws120
- Privileges and Elections Committee111
- Privileges and Elections Committee, Senate53
- Privileges and Elections, Committee on5
- Processing Department23
- Processing Department, Library of Congress3
- Processing Tax Board of Review2
- Procurement Division1,476
- Procurement and Material Office2
- Production Management Office33
- Production Office6