This document, which is intended as a guide for workforce preparation program providers, details the Illinois Occupational Skill Standards for programs preparing students for employment in the telecommunications technician occupational cluster. The document begins with a brief overview of the Illinois perspective on occupational skills standards and credentialing, the process used to develop the skill standards, assumptions underlying the standards, and performance skill levels. Presented next are skill standards for 47 tasks typically performed in the following areas of telecommunications: cable installation; equipment installation; job setup and preparation; enclosure; cable repair and fault location; and preventive maintenance. Each skill standard statement contains the following components: (1) the actual skill standard (including the conditions of performance, work to be performed, and performance criteria); (2) performance elements; and (3) performance assessment criteria. The following items are appended: a telecommunications technician cluster glossary; a general glossary of terms; lists of the Illinois Occupational Skill Standards and Credentialing Council, Communications Subcouncil, and Telecommunications Technician Cluster Standards Development Committee; and a list of necessary workplace skills. (AJ)