Common Gateway Interface Computer Generated Imagery Computer Graphics Interface CAGIVA Clinical Global Impression combustible gas indicator Computer Graphics International Cell Global Identification Chief Ground Instructor Commercial grade item Common Guard Interface Computer Generated Image Computer Generated Images Canadian General Investments Cell Global Identity Center for Geographic Information Certified Genealogical Instructor Chief Gunnery Instructor Client Generated Index Clinical Global Impression Scale Clinical Global Impressions Clinical Global Impressions Scale Clinical Global Improvement Clinical Global Index Coast Guard Institute Coast Guard Intelligence Coast Guard Investigations Collingwood Grain Incorporation Color Graphics Interface Commanding General's Inspections