This report summarizes the response of a monitoring commission to the 1986-87 evaluation of the implementation of the Student Assignment Plan (SAP) that is part of a court-mandated school desegregation plan in Chicago (Illinois). Under the SAP, the Board of Education was required to ensure that no school had more than a 70 percent white enrollment after October, 1983, and that the school system would maintain a desegregation index of at least 2.0 (the total enrollment in integrated and desegregated schools must be at least twice the number of white students available for such schools). The following findings are presented: (1) no school had more than a 70 percent white enrollment and a desegregation index of 2.48 was achieved; (2) voluntary transfer techniques were used to desegregate those schools that were not desegregated; (3) reasonable efforts were made to prevent in-school segregation; (4) adjustment of school boundaries and voluntary transfer were used to alleviate overcrowding; (5) financial reporting has improved; and (6) a plan to shift the location of a gifted program from one school to another may have negative outcomes. Statistical data are presented in 13 tables. The following materials are appended: (1) a list of school enrollments by category, 1983-87; (2) uses of the justification codes, 1985-86 and 1986-87; (3) a list of schools operating over capacity; (4) budget resources, 1980-81 through 1986-87; and (5) budgets for 1984-85 through 1986-87. (FMW)