A study was conducted to examine the reading levels of United States Air Force civilian employees according to occupational groupings and grade structure. Approximately 1,050 Air Force civilian subjects were tested on the Nelson-Denny Reading Test or the California Reading Test. Subjects were selected from eight Air Force bases representing the major commands. The findings demonstrated that the reading grade level and the grade classification of subjects were associated. However, many difficulties are associated with the application and interpretation of the reading grade level concept as it relates to occupational level. (Author/MKM)