At St. Johns...
At least one of the engaged parties must be a Confirmed Catholic. Arrangements for the Sacrament of Matrimony must begin a minimum of six months in advance of the desired wedding date. After taking a Pre-Marital Inventory called "Get Fully Engaged", the couple will be assigned a sponsor couple that will meet with you to review your evaluations and take you through to your rehearsal.
It is the stated policy of the Diocese of Rockford that those to be married must be at least 19 years of age and attend a 'Gift of Self': Marriage Preparation seminar which includes information on Natural Family Planning.