The Instruction Dignitas Connubii, on the norms to be observed at ecclesiastical tribunals in matrimonial proceedings, was compiled by the Pontifical Council for Legislative Texts with the collaboration of the other most closely concerned Dicasteries of the Holy See: the Congregation for the Doctrine of the Faith, the Congregation for Divine Worship and the Discipline of the Sacraments, the Supreme Tribunal of the Apostolic Signatura and the Apostolic Tribunal of the Roman Rota.

At the presentation of the Instruction to journalists accredited to the Holy See Press Office on the 8^th February 2005, Cardinal Julián Herranz, the President of the Pontifical Council for Legislative Texts described its aims thus: "to offer the ministers of justice who work in ecclesiastical tribunals a practical Document, a sort of vademecum that will serve as an easy guide to enable them to handle their work better in canonical processes of matrimonial nullity. Thus, it was desired to repeat the positive experience that the similar Instruction, Provida Mater, met with in 1936." 

It may be accessed here.