The norm in the Extraordinary Form is to read or chant the readings in Latin during the Mass. The prevalent custom in the United States and in many other countries has always been, however, to read (Missa Lecta) or sing (Missa Cantata, Missa Solemis, Missa Pontificalis) the Epistle and Gospel in Latin during the liturgy, and then to come to the pulpit and read the Epistle and Gospel in the vernacular before delivering the sermon-homily, for the hearing of those unable to comprehend the Latin. Note that at Solemn and Pontifical Mass the Subdeacon and Deacon always chant the Epistle and Gospel in Latin.
Article 6 of Summorum Pontificum states, In Masses celebrated in the presence of the people in accordance with the Missal of Bl. John XXIII, the readings may be given in the vernacular, using editions recognized by the Apostolic See.