Abstract
Each parish is to have parochial registers. The parish priest is to see to it that these registers are accurately inscribed and carefully preserved. It provides proofs of receiving sacraments by Christian faithful. For this reason, the parochial register should always be kept carefully according to the norm of law. The Catholic Church, with respect to personal data protection, is to observe the rights of Christian faithful. Although parochial registers differ from state documents it is necessary to update all changes with the approval of the competent ecclesiastical authority. There may occur problematic issues, which require the knowledge of procedures expressed in canon law. We can mention among others apostasy, adoption of a child, transsexualism or issues of hermaphroditism. We can also add the principle of compliance with civil documents. The solicitude for keeping of parochial registers and mandatory of making changes upon request of concerned. The personal data breach is related with the imposition of ecclesiastical sanctions provided both universal and particular law.