Vint was particularly active in the formulation and administration of design standards associated with the Park Service's Mission 66 program. He continued to be the foremost authority on architecture and landscape architecture for the National Park Service until retiring in the 1960s.
Vint played a significant role in developing and enforcing design guidelines for the Park Service's Mission 66 initiative. His expertise in architecture and landscape design continued to be crucial for the National Park Service until his retirement in the 1960s.