Karl Debus-López has worked at the National Library of Medicine, National Agricultural Library, the Executive Office of the President, and the Library of Congress, serving in managerial positions. As chief of the US Programs, Law, and Literature Division at the Library of Congress, he oversees national and international programs, including the Cataloging in Publication Program, International Standard Serial Number Program, Dewey Decimal Classification Program, and the Children’s and Young Adults’ Cataloging Program. Debus-López served twice as president of the Federal and Armed Forces Libraries Round Table. He was instrumental in the merger of FAFLRT and ASCLA to form the new Association of Specialized, Government and Cooperative Library Agencies (ASGCLA), and he is a founding member of the Federal and Armed Forces Libraries Interest Group.