This paper reports the results of a questionnaire distributed to all Philadelphia secondary school principals (with returns from 68 percent), eliciting their reactions to various aspects of the transfer to them of line authority for building engineers. Responses indicate that the process of assuming supervisory responsibility was not yet complete, though more complete in senior high schools than in junior high or middle schools. Likewise, indicators of the beneficial effects of this program on building maintenance and cleanliness were reported more often at the senior high than at the junior high or middle school levels. Benefits of the change reported by the principals included greater ease in ordering custodial supplies, greater authority over the custodial function, and a closer working relationship with the building engineer. The major disadvantage of the program was seen to be the amount of administrative time it requires. Suggestions were offered for followup conferences and additional staff development sessions. Two appendixes provide a tally of responses to each question on the questionnaire and a copy of the maintenance and operations reporting survey. (TE)