Other
- Canada Labour Code
- Canadian Labour Congress
- Canadian Location Code, the Canadian counterpart to a FIPS county code that refers to a forecast region
- CENELEC = European Committee for Electrotechnical Standardization (in document references)
- Chemical looping combustion
- Cheshire Lines Committee a defunct railway organisation based in Northern England
- Children's Legal Centre, recipient of the Gandhi International Peace Award
- Chinese Library Classification
- Cholesteric liquid crystal
- Closed-Loop Control in control theory
- Combat Logistics Company - logistics units within the United States
- Command Line Calculator
- Company Leased Car (India)
- Concerned Local Citizens, Iraqi ad hoc auxiliary police forces.
- Contemporary Literary Criticism, a literary journal.
- Mercedes-Benz CLC-Class
- comp.lang.c, a Usenet newsgroup about the C programming language.
- International Convention on Civil Liability for Oil Pollution Damage
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