the zaire use (french: rite zaïrois) or roman missal for the dioceses of zaire is a variation of the common mass of the roman catholic church. while containing many of the elements of the ordinary form of the mass of the roman rite, it incorporates elements from sub-saharan african culture, particularly congolese, a process referred to as inculturation. additionally, the zaire use may refer to the adjusted sacramental rites utilized by the congolese dioceses. the zaire use form of the mass is unrelated to the earlier defunct african rite.
it is largely a product of the second vatican council's constitution sacrosanctum concilium, particularly the move "for legitimate variations and adaptations to different groups, regions, and peoples, especially in mission lands, provided that the substantial unity of the roman rite is preserved." promulgated by the decree zairensium dioecesium on april 30, 1988, by the congregation for divine worship and the discipline of the sacraments, the missel romain pour les diocèses du zaïre (roman missal for the dioceses of zaire) is an attempt to inculturate the roman missal in an african context, inspired by the liturgical reform initiated at the second vatican council. the missal is now officially entitled congolese missal for the dioceses of zaire.