US HB1429

Expands the National Park Service mission to include promoting "active use" of park system units located in urban areas

Defines "active use" as use prioritizing current enjoyment and quality of life, including playgrounds, pedestrian and bicycle infrastructure, sports and recreation facilities, community events, programming, and concessions

Defines "urban area" as areas designated as such by the Secretary of Commerce in the most recent decennial census

Amends Title 54 of the United States Code (National Park Service and Related Programs)