Publisher
- International Boundary Commission, United States and Mexico10
- International Commission for Equitable Distribution of Waters of the Rio Grande3
- International Congress of Navigation2
- International Cooperation Administration1
- International Fisheries Commission4
- International Joint Commission on Boundary Waters Between United States and Canada54
- International Marine Conference, 1889, United States Delegates1
- International Niagara Board, Special1
- International Passamaquoddy Fisheries Commission1
- International Prison Commission11
- International Prison Congress1
- International Sanitary Convention of American Republics, 19021
- International Water Commission, United States and Mexico1
- Isthmian Canal Commission4
- Library and Rolls Bureau2
- Life-Saving Service1
- Light-House Board6
- Loans and Currency Division6
- Louisiana Purchase Exposition Commission10
- Marine Hospital Service4