Command Guidance Computer 
Commonwealth Grants Commission 
Capillary Gas Chromatography 
cerebellar granule cells 
Circuit Group Congestion 
Climate and Global Change 
Coast Guard Cutter 
Calavo Growers Council 
Canadian Geoscience Council 
Canadian Grain Commission 
Canadian Gypsum Council 
Car Grooming Center 
CASCADE NATURAL GAS CORP. 
Cascade Natural Gas Corporation 
Center for Global Communications 
cerebellar granule cell 
certified genetic counselor 
Certified Gerontological Counselor 
Child Guidance Clinic 
chromatographic 
Clebsch-Gordon Coefficients 
Coast Guard Command 
Coast Guard of Canada 
Coaxial Gas Capacitor 
Cold Gas Compression 
color-graphics controller 
Committee on Global Change 
Committee on Graduate Curriculum 
Compact Glass Column 
computerized gamma camera