§1. The archive must be locked and only the bishop and chancellor are to have its key. No one is permitted to enter except with the permission either of the bishop or of both the moderator of the curia and the chancellor.
§2. Interested parties have the right to obtain personally or through a proxy an authentic written copy or photocopy of documents which by their nature are public and which pertain to their personal status.
Source: Code of Canon Law (Vatican.va)