The Sacrament of Matrimony, or marriage, is a unique sacrament because the man and the woman mutually confer the sacrament upon one another in the presence of a priest or deacon and other witnesses.
It is a sacred covenant, a public promise made by the husband and the wife to be true to each other until death parts them. In order for a marriage to be valid, the couple must enter into the covenant of their own free will, without fear or coercion. They are asked to honor and be true to each other for the rest of their lives, as well as to accept children lovingly from God and bring them up according to the law of Christ and His Church.
A dispensation in Catholic canon law is an exemption from Church law. The authority competent to issue a dispensation is the local bishop or the Apostolic See.