Former Atlanta archbishop to be installed Tuesday as leader of Washington, D.C. Catholic archdiocese

The installation mass will be broadcast on cable and livestreamed

Archbishop Wilton D. Gregory will be installed Tuesday as archbishop of Washington, D.C.

Gregory, who has been archbishop of the Catholic Archdiocese of Atlanta since 2005, was appointed in April. He replaces Cardinal Donald Wuerl.

The ceremony at the Basilica of the National Shrine of the Immaculate Conception in Washington will be carried on livestream by the Archidiocese of Washington website  and on this page. It will also be broadcast on EWTN.

The installation begins with a procession at 1:30 p.m. ahead of the 2 p.m. mass. The livestream begins at 1 p.m.

The National Shrine, the largest Catholic church in North America, was chosen for the ceremony to allow more people to attend, according to a news release from the archdiocese. It was originally planned to be held at the Cathedral of St. Matthew the Apostle.

The Atlanta archbishop seat becomes vacant when Gregory is installed in his new post. A replacement may not be named for eight to 12 months, the AJC previously reported. The archdiocese's two auxiliary bishops will serve in the interim.

The Archdiocese of Washington includes D.C. and five Maryland counties: Calvert, Charles, Montgomery, Prince George’s and St. Mary’s.