The Philadelphia School District's desegregation expansion strategy seeks to achieve and maintain a diverse student population in 117 desegregated schools through providing incentives for voluntary student transfers. One type of transfer is the EH36, which occurs when a student wishes to transfer between a neighborhood school and another open enrollment school. During the 1984-1985 school year, parents who requested EH36 return to neighborhood school transfers were interviewed by telephone. Reasons for returning to neighborhood schools varied. Some parents cited more than one reason, and decisions to return were also dependent on the grade organization of a child's school and the time of year a request was made. Parents' reasons for requesting EH36 fell into six general categories: (1) curriculum or coursework; (2) student dislike of the school; (3) administrative; (4) transportation; (5) family; and (6) physical or emotional health of students. The other type of transfer is the EH38, a process utilized for transfers into those schools having special admissions requirements. The greatest reason for a transfer request cited by parents of children in special admission high schools concerned the difficulty or unsuitability of coursework. Transportation problems were the most cited in comprehensive high schools and junior/middle and elementary schools. The implications of these findings are clear: fewer parents and students will opt out of the voluntary transfer program if: (1) the transportation system operates more smoothly; (2) supportive services for students who dislike the new school are in place; and (3) students are given a realistic perception of the programs and schools they are considering. The district's ability to limit resegregation is related directly to the support it is willing to give to this effort. (KH)