Demographic projections from the California Department of Finance (DOF) suggest that California's public K-12 school system is entering a long period of declining enrollment. Districts with declining enrollment face fiscal pressures, as state funding is tied to the number of students they serve. Declining enrollment also has important implications for the state budget. To help policymakers understand the effects of declines over the coming decade, in the full report, the authors looked at recent district-level enrollment declines and assessed their consequences for districts as well as the state budget. These technical appendices to the full report present: (1) District-level Declines: Additional Results; (2) District-level Declines: Econometric Evidence; (3) Additional Information on Demographic Trends; and (4) Declining Enrollment and Proposition 98. [This report was written with research support from Radhika Mehlotra. For the full report, "Declining Enrollment in California Schools: Fiscal Challenges and Opportunities in the Coming Decade," see ED603726.]