 He also was key in the successful negotiation and signing of international agreements between the United States, the Kingdom of Spain, and the Republic of France on shared underwater and maritime cultural heritage, and represented the United States in international meetings with the United Nationals Educational and Cultural Organization (UNESCO).Delgado also co-chaired the interagency working group on underwater cultural heritage in Washington, D.C. during his NOAA tenure.In 2017, as he approached 60, Dr. Delgado retired from government service and joined the private sector as Senior Vice President of SEARCH, Inc., one of the largest cultural resources and archaeological firms in the United States.