主要是限製目前在美國之外， 4/24/2020之前還沒有獲得移民簽證；或者除簽證外還沒有旅行文件者進入美國。有綠卡，美國公民之配偶，不滿21歲的子女，等等列外. 詳細條款請閱讀以上公告.
(i) are outside the United States on the effective date of this proclamation;
(ii) do not have an immigrant visa that is valid on the effective date of this proclamation; and
(iii) do not have an official travel document other than a visa (such as a transportation letter, an appropriate boarding foil, or an advance parole document) that is valid on the effective date of this proclamation or issued on any date thereafter that permits him or her to travel to the United States and seek entry or admission.
