Actually it does not require subtle knowledge of canon law. The details in a form accessible to, and recommended to, the faithful layman is in a 17 USD book that I have and have read. It is international in application and recommended by the late Byzantine Metropolitan Basil Myron Schott who wrote a foreward.
Inter-Ecclesial Relations Between Eastern and Latin Catholics: A Canonical-Pastoral Handbook by Dimitri Salachas & Krzysztof Nitkiewicz, English Edition by George Dmitry Gallaro, 2009, 157 pp., ISBN 1-932208-23-2
clsa.site-ym.com/store/view_product.asp?id=315681
Sometimes the priests do not follow the canon laws, even when aware of them. The Holy Mysteries are still valid (in most cases) but the celebration may be illicit. This is a reflection on the presbyter not the faithful. However, a Catholic has rights to receive the Holy Mysteries according to the prescription of their ascribed
sui iuris Church, and should be aware of that.
One properly receives the Holy Mysteries of initiation (baptism, chrismation, first communion) per the prescription of the Church sui iuris. For example:
Latin Church and some eastern Catholic Churches:
baptism (infant or adult) by priest or deacon *
confirmation (age of discretion or adult) by bishop or delegated priest (with Holy Myron from the bishop)
first communion (age of discretion or adult)
Adults receive all three together.
Most Eastern Catholic Churches:
baptism (infant or adult) by priest *
chrismation (infant or adult) by priest (with Holy Myron from the bishop)
first communion (infant or adult)
Adults receive all three together.
- and others in grave circumstances