Lets cities and towns choose ranked choice voting for local races. Voters rank candidates; counting runs in rounds until winners are picked. Used only when more candidates than seats. Ends preliminary elections. Ballots can list many rankings; candidate order set by lottery. Towns must publish round-by-round results and data, and provide voter education. The state offers guidance. Adoption can be by ballot, bylaw, or charter, and towns may switch back after 4 years.