This publication was developed in response to inquiries received from teachers and association leaders about the effect of a year-round school schedule on the livelihood and working conditions of teachers. It is intended to assist association leaders who deal with the problems related to (1) local negotiations or policy agreements for the membership, (2) helping leaders participate effectively with the local education authority in planning year-round schedules, (3) providing information that the individual member can use for an understanding of how year-round schools operate and what options exist in the various year-round plans, and (4) directing attention to ways in which year-round schooling can help provide improved programs for students. The publication includes a list of school districts which have, in whole or in part, changed to year-round schools. Also included are policy and caution statements from the California Teachers Association and the New Jersey Education Association, as well as an annotated bibliography on year-round schools. (Author/DN)