Canon 1125. The local Ordinary can grant this permission if there is a just and reasonable cause. He is not to grant it unless the following conditions are fulfilled:

1° the catholic party is to declare that he or she is prepared to remove dangers of defecting from the faith, and is to make a sincere promise to do all in his or her power in order that all the children be baptised and brought up in the catholic
Church;

2° the other party is to be informed in good time of these promises to be made by the catholic party, so that it is certain that he or she is truly aware of the promise and of the obligation of the catholic party

3° both parties are to be instructed about the purposes and essential properties of marriage, which are not to be excluded by either contractant.

Huiusmodi licentiam concedere potest Ordinarius loci, si iusta et rationabilis causa habeatur; eam ne concedat, nisi impletis condicionibus quae sequuntur:

1° pars catholica declaret se paratam esse pericula a fide deficiendi removere atque sinceram promissionem praestet se omnia pro viribus facturam esse, ut universa proles in Ecclesia catholica baptizetur et educetur;

2° de his promissionibus a parte catholica faciendis altera pars tempestive certior fiat, adeo ut constet ipsam vere consciam esse promissionis et obligationis partis catholicae;

3° ambae partes edoceantur de finibus et proprietatibus essentialibus matrimonii, a neutro contrahente excludendis.