What constraints does the US Law hold over the PLO and the PA?

The new US Congress will be sworn in on January 4, 2021.

A new US Administration will be sworn in on January 20, 2021

With the Middle East high on the agenda, members of the new US Congress & officials of the the new US Administration will soon ask:

What laws govern the US relationship with the Palstine Liberation Organization, and its administrative arm, The Palestinian Authority?

These Statutes of US Law concerning the the PLO and the PA speak for themselves.