Under the Program of Research on the Economics of Invasive Species Management (PREISM), ERS supports and conducts research to improve the economic basis of decisionmaking concerning invasive issues, policies, and programs. Program themes have included international dimensions of invasive species prevention and management; development and application of methods to analyze important invasive species issues, policies, and programs; and analysis of economic, institutional, and behavioral factors affecting decisions to prevent or manage invasive species. This document describes the application process for submitting research proposals to be considered for fiscal 2008 competitive awards. The deadline for submission is April 25, 2008.