Wind energy development has addressed significant and increasingly complex regulatory requirements. A number of agencies have been involved in the permitting process, and developers must be careful to consider key issues early in the process. On September 14, 2011, ELI cosponsored a seminar with Patton Boggs LLP that covered the landscape of permitting issues that matter most, and what changes may occur as the industry continues to mature. The speakers also discussed issues in state and local siting rules, significant differences between offshore and onshore development, FAA and military radar issues, the FERC approval process, and related economic regulatory issues critical to wind power development.