Upon the return of democracy in 1983, Falcó was appointed Government Secretary for the General Roca municipality. In 1985 he became a General Roca councillor. From 1991 he served for ten years on the Río Negro provincial legislature, becoming first vice president of the body. He became leader of the Río Negro UCR in 2000.[2]
Falcó was elected to the Senate at the head of the UCR list in 2001. He was a prolific legislator, introducing dozens of new laws. In 2004 he introduced more new projects than any other national legislator. His best known contribution is the so-called 'Falcó Law', Ley 26.093, which promoted the use of biofuels.[3]
Falcó died in July 2007 after a long illness. Jacobo Abrameto was appointed to complete the remaining months of his term on the Senate.[4]