| Criteria | Pauline Privilege | Petrine Privilege |
| Parties Involved | Both parties were unbaptized when they contracted the marriage. | One party was baptized, and the other was unbaptized when they contracted the marriage, and the unbaptized party remained unbaptized subsequent to the marriage. |
| Conversion Requirement | The petitioning party has converted or is converting. | The petitioning party does not need to convert. |
| Purpose | The privilege is granted in favor of the faith of the converting party. | The privilege is granted in favor of the petitioner if he or she is converting or has converted to the Catholic. If the petitioner is not converting, then the privilege is granted in favor of the faith of the Catholic whom the petitioner wants to marry. |
| Granting Authority | The privilege is granted by all diocesan bishops, including the Pope. | The privilege is granted only by the Pope. |
| When the Privilege Takes Effect | The privilege takes effect at the moment the petitioner contracts marriage in the Church. | The privilege takes effect at the moment it is granted by the Pope. |