The Guam Department of Education (GDOE) is a single unified and accredited school district consisting of Kindergarten through 12th grade which administers Head Start, pre-Kindergarten GATE programs, and is piloting pre-Kindergarten classes at selected schools. Their 26 elementary, 8 middle, 6 high and 1 alternative schools serve about 30,000 students and are managed by the Superintendent, who is the chief executive officer for the department, and the Executive Secretary of the 12-member Guam Education Board. GDOE is accredited by the Western Association of Schools and Colleges, and uses the following two standards-based or criterion-referenced testing to assess student progress: (1) ACT Aspire, based on the Common Core Standards in English/Language Arts & Math for grades 3-10; and (2) Standards-Based Assessments (SBA) for grades 1-12 in English/Language Arts, Math, Science and Social Studies content areas. This report captures the Department's progress on accreditation, performance measurements, and finances for School Year 2017-2018 and Fiscal Year 2018. It closes with a discussion of future challenges. [For the FY2017 report, see ED611041.]