Certificate of Negative Test Result (Required)
https://www.mofa.go.jp/ca/fna/page25e_000334.html
Fast Track Entry
https://www.hco.mhlw.go.jp/fasttrack/en/
Resources announcement from JAL (Japan AirLines)
https://www.jal.co.jp/jp/en/info/2020/other/flysafe/flights-service/quarantine-immigration/

U.S. EMBASSY & CONSULATES
https://jp.usembassy.gov/covid-19-information/

Boarder Measures Japan
https://www.mhlw.go.jp/stf/covid-19/bordercontrol.html

Information for what countries are allowed to travel into Japan.
https://www.japan.travel/en/coronavirus/
https://www.anzen.mofa.go.jp/

help with travel.
https://www.jnto.go.jp/smartapp/eng/about.html
https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/0000121431_00248.html
https://www.hyperdia.com/
https://www.mofa.go.jp/ca/fna/page4e_001053.html
https://www.mofa.go.jp/ca/fna/page22e_000921.html
https://data.ana-emailnews.com/entrycheckList_en-us_051921.pdf

apps
COCOA
https://play.google.com/store/apps/details?id=jp.go.mhlw.covid19radar&hl=en_US&gl=US
Google Maps
https://play.google.com/store/apps/details?id=com.google.android.apps.maps&hl=en_US&gl=US
Line
https://line.me/en/
Imiwa
http://www.imiwaapp.com/
MySOS
https://www.allm.net/en/mysos/