Independent sacramental movement in the context of "Independent Catholicism"

Independent Catholicism is an independent sacramental movement of clergy and laity who self-identify as Catholic (most often as Old Catholic or as Independent Catholic) and form "micro-churches claiming apostolic succession and valid sacraments", in spite of not being affiliated with the Catholic Church. The term "Independent Catholic" derives from the fact that "these denominations affirm both their belonging to the Catholic tradition as well as their independence from Rome".

It is difficult to determine the number of jurisdictions, communities, clergy and members who make up Independent Catholicism, particularly since the movement "is growing and changing in every moment". Some adherents choose Independent Catholicism as an alternative way to live and express their Catholic faith outside the Catholic Church (with whose structures, beliefs and practices Independent Catholicism often closely aligns) while rejecting some traditional Catholic teachings.