| Cetacean Education Through Awareness | Academic & Science |
| Carolinas Educational Technology Alliance | Academic & Science |
| Calcutta Electric Traders Association | Business |
| Cleaning Equipment Trade Association | Business |
| Controlled Environment Testing Association | Business |
| Collinsville Equestrian Trail Association | Community |
| Changing Education Through Arts | Community |
| California Educational Theater Association | Community |
| Changing Education Through the Arts | Community |
| California Educational Theatre Association | Community |
| Caribbean Evangelical Theological Association | Community |
| College of Engineering Technology and Architecture | Computing |
| Common Elements Treatment Approach | General |
| Construction Education and Training Authority | General |
| Classroom Environment and Teaching Assessment | General |
| Collectors Edition Trans Am | General |
| Crew and Equipment Transfer Aid | General |
| Centre d'Etudes Techniques Automotion | General |
| Collector Edition Trans Am | General |
| Commemorative Edition Trans Am | General |
| Camara Empresaria de Turismo Por Autotransporte | General |
| Crew and Equipment Translation Aid | General |
| Comprehensive Economic and Trade Agreement | Governmental |
| Central Excise Tariff Act | Governmental |
| Clean Energy Transformation Act | Governmental |
| Comprehensive Employment Training Act | Governmental |
| Comprehensive Employment and Training Act | Governmental |
| Civilian Electronics Technician Afloat | Governmental |
| Comprehensive Economic and Trade Agreement (Canada-EU) | Governmental |
| Comprehensive Economic Trade Agreement | Governmental |
| Care Enough To Act | Governmental |
| Chinese English Translation Assistance | International |
| Centro de Estudios Tecnológicos Agropecuarios | International |
| Canada EU Trade Agree | Regional |
