Which amendment allows you to burn the American flag?

There is no Amendment that allows you to burn the flag but there is a law that Prohibits people from burning the American Flag. The Flag Desecration Amendment (often referred to as the Flag-burning Amendment) is an American proposed law, in the form of constitutional amendment to the Bill of Rights, that would allow the U. S. Congress to prohibit the burning of the US flag.

The flag desecration amendment