This research brief is the first in Research & Development's "Career and Technical Education Series." It uses longitudinal data to document how women, racial and ethnic groups, individuals with disabilities, and those from economically disadvantaged families are represented across the different Career and Technical Education (CTE) career clusters. Specifically, using the Education Longitudinal Study of 2002 (ELS:2002) across the 16 CTE Career Clusters (Advance CTE, 2019), the report examines the representation of individuals currently holding CTE jobs according to their gender, race/ethnicity, disability/impairment status, and their parents' income from 2001. It also compares their representation in CTE occupations to that of the general population. Key findings from this study showed a great deal of underrepresentation of females and racial/ethnic minorities across the 15 career clusters. Findings also showed that individuals with disabilities/impairments and those from families with incomes at or below the national median in 2001 ($42,229; DeNavas-Walt & Cleveland, 2002) were overrepresented in CTE occupations. These results suggest that CTE has created opportunities across some career clusters for individuals with disabilities/impairments and individuals from economically disadvantaged families, but that there are still gaps for females and racial/ethnic minorities across many of the career clusters.