In the interests of improving the educational success of limited English proficient (LEP) students, this analysis outlines a set of recommendations that include principles and ideal practices to be used in educational programs for LEP students. Specifically, the recommendations provide guidance for improving and making more uniform procedures for screening and assessing LEP students for the purpose of classifications, placement, and reclassification. In addition, the report contains recommendations concerning state-level data collection efforts focused on LEP students. This report discusses issues surrounding the assessment of LEP students and recommendations for assessment at key decision-making points; procedures for data-collection; a service delivery model consistent with the recommendations outlined in the report; and policy recommendations, with federal, state, and local implications. The text contains one flowchart. An appendix lists members of the LEP Student Data Project Advisory Committee. Four references are included. (JB)