Since 2003, environmental agencies at federal, state, and local levels have used Lean methods to advance their mission—protecting human health and the environment—in better, faster, and cheaper ways. Numerous other government agencies have also used Lean to improve the effectiveness, efficiency, and transparency of government programs and services. Lean government enables agencies to work more effectively and efficiently by eliminating waste in government processes. This Lean in Government Starter Kit—Version 3.0 is designed to assist government agencies in planning and conducting successful Lean improvement events. The Starter Kit builds on ideas presented in Working Smart for Environmental Protection: Improving State Agency Processes with Lean and Six Sigma.