Website: FOMC Meeting Website
Information/Background: https://www.investopedia.com/terms/f/federalfundsrate.asp
Notes on current meeting: https://www.cmelitegroup.com/knowledge-hub/fomc-meeting-fed-decision-day/
Other market: https://kalshi.com/markets/kxfeddecision/fed-meeting/kxfeddecision-26dec
Note: If there is no published results (within two days of the usual annoucmement) or there is some sort of disruption then OTHER will occur.