Trends in performance assessments across the states of California, Colorado, Connecticut, and Illinois were explored through the development, administration, and analysis of an interstate survey. These four states were selected to represent the diversity of state-mandated testing programs relative to emphasis placed on performance assessment. Surveys were completed by school districts in each state as follows: (1) California, 84 districts representing over 49% of state enrollment; (2) Colorado, 43 school districts; (3) Connecticut, 65 test directors representing 69 districts; and (4) Illinois, 60 responses from a random sample. Despite the different mandates of the four states, the mandates are having substantial influence on district movements toward performance assessment. Districts are moving toward performance assessment, and most are starting from scratch or obtaining materials from a publisher. Systematic collection of information on achievement and performance assessment is a definite need. Seven tables and 23 figures document assessment trends. Appendix A contains the district survey. (SLD)