Where Would I Find Liturgical Norms?

There are two basic resources that guide the celebration of Mass: the Roman Missal itself, particularly the “Order of Mass,” which is usually also included in daily Mass Missals; and the General Instruction of the Roman Missal (GIRM).

There are optional prayers and readings, depending on the time of the liturgical year, so don’t presume related variations are necessarily incorrect, as your daily Mass missal will not be as exhaustive as the Roman Missal. In addition, if you do see something problematic, approach your pastor in charity, and hopefully you can work things out at the parish level. If necessary, one can also bring liturgical concerns to the diocesan deanery level, the diocesan bishop, and, if truly needed, the Holy See.