From the Archdiocese of Chicago:
All employees and all volunteers who work with children must attend the Virtus/Protecting God’s Children training program within three months of beginning employment, ministry or service. Verification of the completion of Virtus Training is filed in the personnel or volunteer file at the place of employment/ministry. Dates and sites for the Safe Environment Training (Virtus/Protecting God’s Children) are posted on the Archdiocese of Chicago website. (Register online, after being hired or accepted as a volunteer.) If the new employee or volunteer has previously completed the Virtus training, inform the local school administrator and provide a copy of the certificate received at the time of training.