It is unclear at this time if these bans will impact Legal Permanent Residents (Green Card Holders).
This list is not final, but is likely to be implemented in some form in the very near future with almost immediate effect.
ALL TRAVEL BANNED
Afghanistan
Bhutan
Cuba
Iran
Libya
North Korea
Somalia
Sudan
Syria
Venezuela
Yemen
MAY BE BANNED
Belarus
Eritrea
Haiti
Laos
Myanmar
Pakistan
Russia
Sierra Leone
South Sudan
Turkmenistan
MAY BE BANNED IN 60 DAYS
Angola
Antigua and Barbuda
Benin
Burkina Faso
Cambodia
Cameroon
Cape Verde
Chad
Republic of Congo
Democratic Republic of Congo
Dominica
Equatorial Guinea
Gambia
Liberia
Malawi
Mali
Mauritania
St. Kitts and Nevis
St. Lucia
São Tomé and Príncipe
Vanuatu
Zimbabwe