Catholic canon law in the context of "Derogation"

A particular church (Latin: ecclesia particularis) is an ecclesiastical community of followers headed by a bishop (or equivalent), as defined by Catholic canon law and ecclesiology. A liturgical rite, a collection of liturgies descending from shared historic or regional context, depends on the particular church the bishop (or equivalent) belongs to. Thus the term "particular church" refers to an institution, and "liturgical rite" to its ritual practices.

In Catholic canon law, promulgation is the publication of a law by which it is made known publicly, and is required by canon law for the law to obtain legal effect. Universal laws are promulgated when they are published in Acta Apostolicae Sedis, and unless specified to the contrary, obtain legal force three months after promulgation. Particular laws are promulgated in various ways but by default take effect one month after promulgation.

The Decretals of Gregory IX (Latin: Decretales Gregorii IX), also collectively called the Liber extra, are a source of medieval Catholic canon law. In 1230, Pope Gregory IX ordered his chaplain and confessor, Raymond of Penyafort, a Dominican, to form a new canonical collection destined to replace the Decretum Gratiani, which was the chief collection of legal writings for the church for over 90 years. It has been said that the pope used these letters to emphasize his power over the Universal Church.

Validity and liceity are concepts in the Catholic Church. Validity designates an action which produces the effects intended; an action which does not produce the effects intended is considered "invalid". Liceity designates an action which has been performed legitimately; an action which has not been performed legitimately is considered "illicit". Some actions can be illicit, but still be valid.

Catholic canon law also lays down rules for licit, also called lawful, placing of the act, along with criteria to determine its validity or invalidity. Valid but illicit or valid but illegal (Latin: valida sed illicita) is a description applied in the Catholic Church to describe either an unauthorized celebration of a sacrament or an improperly placed juridic act that nevertheless has effect. Validity is presumed whenever an act is performed by a qualified person and includes those things which essentially constitute the act itself as well as the formalities and requirements imposed by law for the validity of the act.

Approbation (Latin: approbātiō), in Catholic canon law, is an act by which a bishop or other legitimate superior grants to an ecclesiastic the actual exercise of his ministry.

The necessity of approbation, especially for administering the sacrament of penance, was expressly decreed by the Council of Trent so, except in the case of imminent death, the absolution by a non-approved priest would be invalid. This approbation for the sacrament of penance is the judicial declaration of the legitimate superior that a certain priest is fit to hear, and has the faculties to hear, the confession of his subjects.

The term Catholic Bible can be understood in two ways. More generally, it can refer to a Christian Bible that includes the whole 73-book canon recognized by the Catholic Church, including some of the deuterocanonical books (and parts of books) of the Old Testament which are in the Greek Septuagint collection, but which are not present in the Hebrew Masoretic Text collection. More specifically, the term can refer to a version or translation of the Bible which is published with the Catholic Church's approval, in accordance with Catholic canon law. The current official version of the Catholic Church is the Nova Vulgata.

According to the Decretum Gelasianum (a work written by an anonymous scholar between AD 519 and 553), Catholic Church officials cited a list of books of scripture presented as having been made canonical at the Council of Rome (382). Later, the Catholic Church formally affirmed its canon of scripture with the Synod of Hippo (393), followed by a Council of Carthage (397), another Council of Carthage (419), the Council of Florence (1431–1449), and the Council of Trent (1545–1563). The canon consists of 46 books in the Old Testament and 27 books in the New Testament, for a total of 73 books in the Catholic Bible.