As an agency within the Department of Transportation, the Maritime Administration is primarily concerned with the world of waterborne transportation. The agency also works in a variety of areas, including shipbuilding, port operations, national security, and safety. Users who find themselves on the site's homepage will find sections dedicated to topics that include "Ports", "Ships & Shipping", "Mariners", and five additional areas. In the "Ports" area, visitors can learn about the agency's current work on facilitating shipping and private business, along with infrastructure development programs that are underway. Further along, the "Ships & Shipping" area is quite interesting, and visitors can learn about the Marine Highway Program and the Ship Disposal program. Finally, the site is rounded out by a fine online library, which contains factsheets, policy papers, and video and audio features.