On Thursday, the full IOC will award the 2024 Games to Paris and the 2028 Games to Los Angeles.
Los Angeles had originally bid for 2024, but because of the new date, it had to make changes to its host contract.
The evaluation commission signed off on those on Tuesday, saying that although details need to be finalised, it is confident LA can host in 2028.
Los Angeles received concessions for agreeing to host four years later, including receiving a portion of the IOC's surplus from the Olympics to fund youth sports programs in the city.
Los Angeles will also receive up to $2 billion from the IOC, which is up to $300 million more than it would have gotten for 2024.
Photo by: DENIS BALIBOUSE/REUTERS Caption: International Olympic Committee President Thomas Bach.