By their nature, apostolic constitutions are addressed to the public.

The next highest category, after an apostolic constitution, is an encyclical Letter.

Two points in that of the Apostolic Constitutions should be noticed.

Funk thought the apostolic constitutions were written as late as the beginning of the fifth century.

Apostolic constitutions are issued as Papal bulls due to their solemn, public form.

Apart from the Apostolic Constitutions, which was printed before 1563, all other texts have been discovered and published in the 19th or early 20th century.

The apostolic constitution on the personal ordinariates for former Anglicans will contain the following rule:

The Apostolic Constitutions have preserved an older form unchanged by the development that modifies forms in actual use.

The structure of the Apostolic Constitutions can be summarized:

The oldest ordination rite for deaconesses is found in the 5th-century Apostolic Constitutions.