Today's Stational Church is the Church of St. Sixtus II. Information is from the Canon Regulars of St. John Cantius:
The St. Sixtus Stational Church is located on the Appian Way and is a parish church dating to the fifth century. It was in this church that the catechumens were presented to the Church by their sponsors. Their names were written on tablets of ivory covered in leather, which were read at the Commemoration of the Living. After the Collect of the Mass, the catechumens received the initial parts of the Baptismal ceremony, viz. the rites of exsufflation, of the sign of the cross, of the imposition of hands and that of the salt.
In an age, which makes light of God's commandments, it is of special importance that the faithful be uncompromising in the observance of the "ways of life." Let us be "the salt of the earth and the light of the world," as our holy leader Sixtus was in the third century. We invite this holy pontiff to precede us to the altar and to ask for us "that we, who seek the grace of God's protection, may serve Him with a quiet mind.
Let us pray: Grant us, we beseech Thee, O Lord, that disciplined by wholesome fasting, and abstaining from all vices, we may more easily gain forgiveness. Through Christ, Our Lord. Amen.