“Holy Orders is the sacrament through which the mission entrusted by Christ to his apostles continues to be exercised in the Church until the end of time: thus it is the sacrament of apostolic ministry. It includes three degrees: episcopate [Bishops], presbyterate [priests], and diaconate [deacons] (Catechism of the Catholic Church #1536).
If you are interested in learning more about becoming a deacon or a priest, please contact Fr. Green.