Racial residential segregation in Dallas public housing projects is analyzed before and after the implementation of the "central tenant assignment plan," adopted in May of 1975, Among the socioeconomically segregated population served by public housing, the effects of race and the nondiscrimination policy are investigated using project occupancy data. Indexes of dissimilarity are used to measure racial segregation, and the racial compositions of the communities in which the projects are located are described using 1970 U.S. census and 1976 Dallas City Profile Survey data. The findings indicate that the nondiscrimination policy was not effective in reducing the high levels of racial segregation. A small decline in segregation was noted after a change in project administrative personnel late in 1974.