The Israelis must do their part. They must show the world that they are ready to begin — bring an end to the occupation that began in 1967 through a negotiated settlement. This settlement will establish Palestine as a Palestinian homeland, just as Israel is a homeland for the Jewish people. Israel must demonstrate its support for the creation of a prosperous and successful Palestinian state by removing unauthorized outposts, ending settlement expansion and finding other ways for the Palestinian Authority to exercise its responsibilities without compromising Israel’s security.
Authorized outposts will stay.
Expansion must stop.
What is "expansion"?
Is it new communities? New neighborhoods within existing communities? New houses, added rooms, basements and upstairs additions?
And from the Joint Declaration:-
The United States will monitor and judge the fulfillment of the commitment of both sides of the road map. Unless otherwise agreed by the parties, implementation of the future peace treaty will be subject to the implementation of the road map as judged by the United States.
So, the US is now an active part of the process.