[1][2] It seeks to encourage ecumenical collaboration and mutual assistance between its member organisations at international, national and individual port levels.
The Code of Conduct prescribes that members:[3][4] The specifics of interreligious and ecumenical cooperation have often been sources of controversy, particularly as regards sacraments and Catholic seafarers.
This is achieved by regional and global meetings and conferences, a network directory, communication systems and ecumenical relations.
They also maintain more than 400 seafarers' centres and other shore-based welfare facilities and services in many international sea- and river ports.
Its members specialise in providing face-to-face frontline pastoral care to seafarers, fishers and families in ports, on board and at home.
ICMA members cooperate locally with unions and representatives of the International Transport Workers' Federation (ITF), shipping companies, agents and governments.
Paul G. Mooney, Maritime Mission: History, Developments, A New Perspective (Zoetermeer: Uitgeverij Boekencentrum, 2005).
Jason Zuidema and Kevin Walker, "'Welcoming the Orphans of Globalisation': The Case for Seafarers' Ministry," Science et Esprit 72/3 (2020): 311–324.