OCIA stands for Order of Christian Initiation for Adults. The OCIA is intended for those who are not Catholic and who desire to enter into full communion with the Catholic Church. Through the course of the year, beginning in the fall and culminating in the Easter Vigil, OCIA participants attend weekly classes on the Catholic faith. Anyone who wishes to grow in knowledge of the mysteries of the Catholic faith are also welcome to attend these classes.  For more information on OCIA in general, please visit this page: Christian Initiation of Adults | USCCB