The Smart Savings Act (H.R. 4193) (Public Law No: 113-255) made the default investment in the Thrift Savings Plan (TSP) an age-appropriate target date asset allocation investment fund (L Fund) instead of the Government Securities Investment Fund (G Fund). The bill was introduced into the United States House of Representatives during the 113th United States Congress. A similar bill, S. 2117, was introduced into the United States Senate.