I have determined to partially restrict and limit the entry of nationals of the following 15 countries: Angola, Antigua and Barbuda, Benin, Cote d 'Ivoire, Dominica, Gabon, The Gambia, Malawi, Mauritania, Nigeria, Senegal, Tanzania, Tonga, Zambia, and Zimbabwe.
Quoted from the source.
Who sets the entry rules
Puerto Rico is a US territory, and the US Visa Waiver Program applies there.
The conditions that come with this rule, from its official sources.
Conditions from official sources
Entry on a B-1 or B-2 visitor visa is suspended unless the traveler held a valid U.S. visa on January 1, 2026, travels as a dual national on another country's passport, or gets a case-by-case national-interest exception.
Passport validity
The source states no minimum passport validity.
Tourist entry only
These rules cover tourist visits. Work, study and transit follow other rules.
Visa-free nearby
Other places Senegal passport holders can visit without a visa, within 2,500 km of San Juan, nearest first.
DominicaRoseau, about 610 km from San JuanVisa-free · 21 days
HaitiPort-au-Prince, about 660 km from San JuanVisa-free · 90 days