The government of Japan has announced the temporary suspension of the Phased Measure for Resuming CrossBorder Travel. In effect, all new entries of non-resident foreign nationals, including those through the "Business Track" and "Residence Track" frameworks, are now banned, at least until the state of emergency declaration is lifted, which has been extended to March 7. This measure has been put in effect since 12:00 AM, January 14 (JST).
A Tax Alert prepared by EY's People Advisory Services group, and attached below, provides additional details.