With the promulgation of the motu proprio Mitus iudex Dominus Jesus for the Latin Church and the motu proprio Mitis et misericors Jesus for the Eastern Catholic Churches, both dated August 15, 2015, Pope Francis addressed the calls during the Third Extraordinary General Assembly of the Synod of Bishops (October 5-19, 2014) for a simplified procedure for the declaration of the nullity of marriages. Pope Francis introduced a briefer process to be conducted by the diocesan bishop and he simplified the current ordinary nullity process. The new procedural norms went into effect on December 8, 2015.

New legislation always challenges first and foremost the practitioner: how is the new legislation to be understood and applied? Immediately after the new law was made public, a number of articles on this new legislation were published in The Jurist. The School of Canon Law of The Catholic University of America organized a March 2016 Workshop on the very topic of this important procedural reform.

These articles are now brought together in one volume to assist those who work with these norms in the various tribunals dealing with marriage cases. It is hoped that this volume will be of great service to all those who serve the people of God in the ministry of justice, and that these contributions will truly be a help in understanding and applying the new norms.

When Monsignor Thomas J. Green, professor at the School of Canon Law at The Catholic University of America, approached his seventy-fifth birthday and the fiftieth anniversary of his priestly ordination, his colleagues planned on offering him a fitting tribute in the form of a festschrift. Six people with different backgrounds, but all related to Msgr. Green on one way or another, have written a laudatio – a short congratulatory letter – in honor of Monsignor Green. No less than fifteen contributions on various topics by colleagues, canon law scholars, clearly relate and reflect upon the honoree's scholarly contributions to canon law. The topics are extremely varied, and illustrate how Monsignor Green has been or is active in nearly every area of canon law. Virtually every book of the Code of Canon Law is covered, if not directly, at least indirectly. While the book is a tribute to an eminent professor, the various scholarly contributions are unique pieces of scholarship. The authors of the laudatio are: John Garvey (President, The Catholic University of America); Andrew Abela (Provost, The Catholic University of America); Rev. Msgr. J. Brian Bransfield (General Secretary of the United States Conference of Catholic Bishops); Rev. Msgr. Ronny E. Jenkins (Dean, School of Canon Law, The Catholic University of America); Rev. Msgr. J. James Cuneo (Diocese of Bridgeport) and Sister Sharon Euart, RSM (Executive Director, Resource Center for Religious Institutes, Silver Spring, MD).