Federal-aid Highway Program: To assist State transportation agencies in the planning and development of an integrated, interconnected transportation system important to interstate commerce and travel by constructing and rehabilitating the National Highway System (NHS), including the Eisenhower Interstate
System; and for transportation improvements to most other public roads; to provide aid for the repair of Federal-aid highways following disasters; to foster safe highway design; to replace or rehabilitate deficient or obsolete bridges; and to provide for other special purposes.
This program also provides for the improvement of roads in Puerto Rico, Guam, the U.S.
Virgin Islands, American Samoa, the Northern Mariana Islands, and the Alaska Highway.
The Federal Lands Highway Program (FLHP), as an adjunct to the Federal Aid Highway Program, provides assistance to the Federal Land Management Agencies (FLMAs) for Federally owned roads.
It provides transportation engineering services for planning, design, construction, and rehabilitation of the highways and bridges providing access to federally owned lands.
The Federal Lands Highway organization also provides training, technology, deployment, engineering services, and products to other customers.