If you are and adult and have received the Sacraments of Baptism and First Communion and still need to receive Confirmation, then you should attend the Confirmation formation.
If you are unbaptized or baptized and haven't received your First Communion, then RCIA is the program you need to attend.
At St. Mary's RCIA and Confirmation now run as one class because of the similar information that is covered.
St. Mary's does not provide First Communion formation for children or Confirmation for teenagers.
Information on Marriage preparation, Mass and Reconciliation can be found here.