Membership in the Green Party is free and open to all. The only requirements for membership are that a person; a) lives in Iowa, b) shares the Green Party’s values, c) fills out a membership form and is not registered simultaneously as a member of the Democratic or Republican Party. If you were registered Green previously in the State of Iowa, you need not reregister with the Green Party. There is no membership fee, but you can help with operation and outreach expenses.