概要欄
https://www.yomiuri.co.jp/national/20220504-OYT1T50011/
https://view.officeapps.live.com/op/view.aspx?src=https%3A%2F%2Fwwwtb.mlit.go.jp%2Fkanto%2Fcontent%2F000163939.docx&wdOrigin=BROWSELINK
https://www.mlit.go.jp/notice/noticedata/sgml/116/82000295/82000295.html