The Cuban Liberty and Democratic Solidarity Act of 1996, Pub. L. 104–114, 110 Stat. 785, 22 U.S.C. §§ 6021–6091 is a United States federal law which strengthens and continues the United States embargo against Cuba. From Wikipedia
The move, accompanied by Cuba's pledge to release 553 prisoners, is expected to be reversed by Donald Trump after his inauguration.