Muñoz was active in the establishment of Museo Alameda, one of the first formal Smithsonian Affiliates which closed its doors in 2012. For a number of year he has been involved with the Smithsonian Institution in Latino boards and also in the effort to create a National Latino Museum on the Mall in Washington D.C. He serves as chairman of the national commission established to study the creation of what would be known as The Smithsonian American Latino Museum. He is a former vice chairman of the Smithsonian National Board, chairman emeritus of the Smithsonian National Latino Board and serves as a trustee of Cooper-Hewitt, Smithsonian Design Museum.
