Publisher
- Classification Division2
- Coast Artillery Division3
- Coast Artillery Fire Board8
- Coast Artillery Office30
- Coast Artillery Office (formerly Artillery Office)1
- Coast Artillery School20
- Coast Guard and Transportation, Bureau of1
- Coast and Geodetic Survey7
- Colorado, Department of the3
- Command and General Staff School14
- Commissary-General of Subsistence1
- Comptroller of Currency6
- Construction Division3
- Construction and Repair Bureau1
- Contract Adjustment Board28
- Contract Settlement Office7
- Cuban Census Office5
- Currency, Division of1
- Customs Service2
- Customs and Insular Affairs Division73