This document addresses the concept of a year-round educational system (YRES) as an alternative schedule for education, the associated costs of an extended school year, the operational costs for single and multi-track YRES calendars, and the potential for the avoidance of capital costs in multi-track calendars. Topics include the reduction of class size with YRES, California's YRES incentive funding program and the state's interest in the year-round school concept, the programming of traditional and four-track YRES classes, YRES school capacity and combination classes, and ideas for getting American schools into year-round systems. Data concerning the state's estimated public school enrollment and spending for 1991-1993 are also presented. (GR)