The Congregation for Divine Worship, in its 2000 instruction Liturgiam Authenticam (n. 123) and in a 2001 response published in Notitiae, explicitly reaffirmed that the priest may celebrate versus populum or ad orientem according to local custom and pastoral prudence.
“The practice of celebrating the Eucharistic Sacrifice ad orientem … is altogether legitimate and praiseworthy.”—Notitiae 37 (2001), 180–181, n. 2
Moreover, the diocesan bishop may encourage but not forbid ad orientem (cf. Redemptionis Sacramentum 25 March 2004, n. 19).
🚨 Diocese of Greensburg, PA
According to Bishop Kulick's office, the ad orientem Novus Ordo Mass has been BANNED throughout the entire diocese.
Is this happening elsewhere too?