As Catholics view Baptism as efficacious and non-repeatable, the church takes seriously the obligation to assess various forms of Baptism conducted by other groups. As the Mormon teaching on the Trinity conflicts substantially with the traditional Christian understanding, the Catholic Church does not recognize Mormon baptisms as valid, even though the ceremony looks outwardly very similar. In this document, the CDF outlines the reason for this decision based on the theological understanding of Baptism and the Trinity.