To book a ticket to Tokyo, many athletes must still meet Olympic standards and/or accumulate enough ranking points in qualifying competitions to be eligible for selection. The IOC appears to have offered already qualified athletes some protection. But National Olympic Committees (NOC) and sporting federations indicated to Reuters that that is not the IOC's decision to make. The assurances the IOC can offer are primarily connected to the number of spots allocated for each sport. The IOC was asked by Reuters if it would force NOCs to honor its guarantee but did not receive a response.
Source: International New York Times April 01, 2020 21:22 UTC