C-JWICS
C-JWICS stands for Containerized Joint Worldwide Intelligence Communications System (US DoD)
C-JTSCC
C-JTSCC stands for CENTCOM (US Central Command)-Joint Theater Support Contracting Command (US DoD)
C-IV
C-IV stands for Schedule IV Controlled Substance (USA)
C-ISUP
C-ISUP stands for Cisco-Integrated Services Digital Network User Part
C-ISI
C-ISI stands for Composite Model Insulin Sensitivity Index
C-IPT
C-IPT stands for Contractor In-Plant Testing
C-in-C
C-in-C stands for Commander in Chief
C-IMINT
C-IMINT stands for Counter-Imagery Intelligence
C-III
C-III stands for Schedule III Controlled Substance (USA)
C-II
C-II stands for Schedule II Controlled Substance (USA)