Section 1865.31 - Estimated Average Daily Attendance -High School Attendance Area(a) As permitted by Section 17741, a district may file an application based upon a high school attendance area rather than a districtwide basis. A high school district or a unified school district filing on a high school level would base its application on enrollment estimated to attend such high school and upon facilities already existing in such high school attendance area. An elementary school district or unified district filing on an elementary level would base its application on the enrollment and existing facilities of the elementary schools serving the high school attendance area under consideration.(b) The estimated average daily attendance of a high school attendance area as permitted by Section 17741 of the act for determining the allowable building area, when the district is applying only on a high school attendance area basis as opposed to a districtwide basis, shall be computed in the same manner as that set forth in regulation 1865.30, except that the enrollment used in such computation shall be that of the high school attendance area rather than the entire district and shall be certified by the district.(c) In those instances where the high school attendance area results in a split in individual attendance areas of the contributing elementary or junior high schools, an assignment of enrolled pupils in such split attendance areas shall be made by the district in a manner satisfactory to the executive officer.Cal. Code Regs. Tit. 2, § 1865.31