There are three ways:

1. Run for the UUA Board of Trustees from your local district.
2. Apply for an appointment to a committee by the UUA Board of Trustees through their "Committee on Committees." Applications are due by August 20 of every odd-numbered year, appointments made in the following October, and take effect in January.
3. Run for office by seeking a nomination from the UUA Nominating Committee, or run by petition. Applications due in August of every even-numbered year, and nominations are made in October. Elections are held at the following General Assembly. Those who wish to run by petition must file by February 1. Details on how to run by petition are in the UUA bylaws.