The US Heavy-Ion Fusion Science program has the long-term goal of developing inertial-confinement fusion as an affordable and environmentally attractive source of electrical power. Toward this goal, the near-term HIFS research at US National Laboratories uses reduced-scale experiments and state-of-the-art numerical simulations to understand the injection, transport, and focusing of the high-current beams needed for this approach to fusion energy. Since 1998, this research has been co-ordinated in the US by the Heavy-Ion Fusion Science Virtual National Laboratory.