These appendices supplement the full report "Linking Adult Education to Workforce Development in 2018-19: Early Implementation of the Workforce Innovation and Opportunity Act at the Local Level. Evaluation Report. NCEE 2023-001r" (ED626771). They provide additional information about the analyses conducted for the report and present select results from a national survey of local adult education providers. This includes information about the key constructs and estimation approaches used in the report (appendix A), statistics that support key findings in the report (appendix B), and comparisons of statistics reflecting adult education in 2001-02 and 2018-19 (appendix C). Information on how the survey sample and questionnaire were developed is available in the study's compendium report (ED626773). Supplemental tables for the survey are also available in that report.