This handbook is designed to aid school districts that are considering either implementing a year-round program for the first time or improving and expanding an existing year-round program. The handbook is organized in 11 chapters that discuss the following topics: introduction to the year-round school, reorganizing the school calendar, adopting the year-round calendar, case studies of year-round programs in California, the legal basis for year-round school programs, financing year-round school programs, accounting and reporting of attendance, personnel considerations, planning school facilities, evaluating year-round programs, and supplemental information on year-round programs. In addition, there is an extensive bibliography of various publications and other reference materials relevant to the topic of year-round school programs. (JG)