Calcifying Odontogenic Cyst - Medicine (MELL)
Calgon Carbon - NYSE symbol (SAG)
California College of Arts and Crafts, Oakland, CA - Library symbol - Library of Congress (LCLS)
Call of Cathulhu (SAUS)
Camco, Inc. - Toronto Stock Exchange symbol
Camera Optics Manufacturing Corporation (SAUO)
Canadian Opera Company
Canadian Orthodox Church (FOTI)
Canadian Orthoptic Council (EAIO)
Carbon Monoxide Concentration
Cardiology Office Computer (SAUS)
Card Oriented Computer (SAUS)
Cathodal Opening Clonus - Physiology (MAE)
Cathodal Opening Contraction - Also, CaOC - Physiology
Central Office Connection - Telecommunications (TSSD)
Central Product Classification (SAUS)
Certificate of Competency - Small Business Administration
Certificate of Compliance - FCC (NTCM)
Certificate of Conformance - DoD
Certificate of Coverage - Insurance
Certification of Completion
Certification of Compliance (SAUS)
Chain of Custody
Chamber of Commerce
Change of Command
Change of Contract - Business law (AAG)
Change Order Conference (AAG)
Change-Over Control (SAUS)
Channel Operation Complete (SAUS)
Character Oriented Communications Controller - Computer science (VLIE)
Chemical Oxygen Consumption (SAUS)
Chief of Chaplains - Navy
Chlorate Oxygen Candle
Cholesteryl Oleyl Carbonate (SAUS)
Christian Outdoor Coalition (EARSL)
CINCPAC - Commander-in-Chief, Pacific Operation Center (CINC)
Circle of Companions - Defunct (EA)
Circuit Order Control (VLIE)
Civilian Orientation Cruise (DNAB)
Clergy Orphan Corp. - British
Clergy Orphan Corporation (SAUO)
Clerk of the Chapel - Unions - British (DGA)
Cleveland Open Cup - Flash point determination - Fuels and Lubricants
Climb on Course - Aviation (FAAC)
Close-Open-Close (NASA)
Coast Conference (PSS)
Cobra Catamaran Corp., Glen Head, NY - Manufacturer code for watercraft hull identification number (USCG)
Coccygeal - Anatomy
Cocesna - ICAO designator (FAAC)
Cochem-Zell - German license plate city code
Cockerill - NCIC firearms make code (NCIC)
Cocopa - Language code (ETLW)
Coded Optical Character - Computer science (BUR)
Code of Conduct - Military (AFM)
Code Operations Coordinator (MUGU)
College of Chaplains (NTPA)
Colloidal Organic Carbon - Environmental chemistry
Colombo - Sri Lanka - Seismograph station code, US Geological Survey (SEIS)
Colorado College, Colorado Springs, CO - OCLC symbol (OCLC)
Columbus & Southern Ohio Electric Company (SAUO)
Combat Operations Center - Air Force
Combination Type Oral Contraceptive - Medicine
Combined Operation Centre (SAUS)
Combined Operations Command - British
Command and Control (SAUS)
Commandant of Cadets - Military
Commanding Officers Cabin (SAUS)
Command of Camp - Military (VNW)
Command Operations Center - Military (NVT)
Commissioned Officer Corps - National Oceanic and Atmospheric Administration
Committee of Concern
Committee on Carcinogenicity - British
Committees of Correspondence (EA)
Communication Computer (SAUS)
Companions of Christ (TOCD)
Compiler Object Code - Telecommunications (TEL)
Complete Operational Capability
Comprehensive Organic Chemistry - A publication
Comptroller of the Currency
Computer Control Center (SAUO)
Computer on the Chip (ELAL)
Computer Operation Code (SAUS)
Computer Operations Centre (SAUS)
Computer Operators' Course
Computer Oriented Classicists (EA)
Computer Output Committee (SAUS)
Concordia - Argentina - Airport symbol (OAG)
Conoco - Company symbol
Contaminant of Concern - A site-related constituent that exceeds the screening criteria (IDEM)
Contempt of Court
Control Officers' Console
Conventional Oxidation Catalysis - of gasoline engine exhausts
Conventional Oxidation Catalyst - Automotive engineering
Conversion Operation Code (SAUS)
Corcoran, CA - Amtrak rail station code
Corporate Operations Committee
Corps of Cadets
Corps of Commissioners (SAUO)
Corps Operations Center - Military technology (DDF)
Cost of Compliance - Automotive emissions standards
Cost of Consumables (AAEL)
Cottaging or Cruising (WDAA)
Council of Canadians - An association
Country of Commencement - Travel industry (TRID)
Course of Construction - Insurance
Cross Office Check (SAUS)
Cross-Over Connector (VLIE)
Crown Office in Chancery (SAUO)
Cultuur-en Ontspanningscentrum - Center for Culture and Recreation - Netherlands
Customer-Originated Change (AAG)
Cycles of Concentration - Environmental safety (LDOE)
Cycloolefin Copolymer
Cyprus Olympic Committee (EAIO)
Firma Conseta/Cirrus, Saabrucken - Germany - FAA designator (FAAC)
Cocaine (ODA)
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