CLA
From The Glossary of Digital Photography
An abbreviation for clean, lubricate, and adjust. The maintenance done regularly on cameras. CLA is more applicable to film cameras rather than digital cameras, since film cameras have more moving parts.

ONLINE GLOSSARY OF DIGITAL PHOTOGRAPY
An abbreviation for clean, lubricate, and adjust. The maintenance done regularly on cameras. CLA is more applicable to film cameras rather than digital cameras, since film cameras have more moving parts.