Pt. 1. The celebration of Mass. Liturgical ministers and the gathered assembly -- The Eucharistic celebration and its symbols -- Adapting the celebration to particular circumstances -- pt. 2. Introductory rites -- pt. 3. Liturgy of the word -- pt. 4. Liturgy of the Eucharist. Preparation of the gifts -- Eucharistic prayer -- Communion rite -- pt. 5. Concluding rite.