| Abbreviation | Definition |
|---|---|
| DCEO | Department of Commerce and Economic Opportunity |
| DCIC | Department of Commerce Industrial Codes |
| DCOC | Davis Chamber of Commerce |
| DEC | Design Engineering and Commerce |
| DECCA | Department of Commerce and Community Affairs |
| DGCC | Dhananjayrao Gadgil College of Commerce |
| DGFASLI | Directorate General Factory Advice Service and Labour Institutes |
| DHCC | Dallas Hispanic Chamber of Commerce |
| DITB | Distributive Industry Training Board |
| DITC | Directorate of Industries Trade and Commerce |
| DMCC | Denver Metro Chamber of Commerce |
| DNCC | Derbyshire and Nottinghamshire Chamber of Commerce |
| DRCC | Damariscotta Region Chamber of Commerce |
| DSCC | Delaware State Chamber of Commerce |
| DTCM | Department of Tourism and Commerce Management |
| EACC | European American Chamber of Commerce |
| ECCC | Electronic Commerce Council of Canada |
| ECCI | Esperance Chamber of Commerce and Industry |
| ECCI | Estonian Chamber of Commerce and Industry |
| ECCK | European Chamber of Commerce in Korea |