COMMON LANGUAGE^® Information Services:
CLLI^™ Codes Self-Paced Training

COMMON LANGUAGE Location Codes (CLLI Codes) are the most widely used of our network nomenclature. They are recognized worldwide and accredited by the American National Standards Institute (ANSI).

Those of you who have heard the name, but know very little else about CLLI codes, will find our self-paced training course extremely helpful.

The chief advantage is that you are free to study as time permits. There are eight sections, each of which is followed by questions and answers that test your understanding of the material.

CLLI code Standard licensees are authorized to browse or download this document. All others are encouraged to contact us for licensing information.