Since 1998, Chatsworth Charter High School has remained a demonstration site with a SAS exemplary designation for their Gifted and Talented Education (GATE) implementation. The Schools for Advanced Studies designation includes models of innovative, equitable and effective GATE practices district wide by providing high-quality differentiated instruction with an emphasis on depth, complexity, acceleration and novelty. SAS sites such as Chatsworth Charter High School offer high-level academic opportunities that meet the unique educational needs for high school gifted learners, identified in the Intellectual Ability, High Achievement Ability, Specific Academic Ability, Creative Ability and Leadership Ability categories or verified based on critical thinking/achievement. Each SAS site must adhere to State and District GATE/SAS requirements; however, schools have flexibility in the clustering model, thematic emphasis, differentiated instructional strategies and enrichment opportunities provided to students.