On October 10, the Iowa Libertarian and Green Parties each turned in “voter registration form” petitions. Assuming each petition has at least 850 signatures of registered voters, the two parties will be listed on voter registration forms as a choice. This procedure exists because the two parties won their lawsuit on this matter earlier this year.
Any party that has appeared on the ballot in Iowa in the last 10 years is free to do the same petition and also be listed on the voter registration form.