Puerto Rico
Sao Tome and Principe passportEdit check
Visa, stay set by the visa
Before you travel: you need a visa from an embassy or consulate.
How long you may stay is set by your visa.
Entry and stay only. What this covers
Source & evidence Read the original words
Official wording
A valid unexpired visa that meets the requirements of part 215, subpart B, of this chapter, if applicable, and an unexpired passport, shall be presented by each arriving nonimmigrant alien except that the passport validity period for an applicant for admission who is a member of a class described in section 102 of the Act is not required to extend beyond the date of his application for admission if so admitted, and except as otherwise provided in the Act, this chapter, and for the following classes: … A visa is not required of any alien who is eligible to apply for admission to the United States as a Visa Waiver Program applicant pursuant to the provisions of section 217 of the Act and part 217 of this chapter if such alien is a national of a country designated under the Visa Waiver Program, who seeks admission to the United States for a period of 90 days or less as a visitor for business or pleasure.
Aevamo’s reading
Section 212.1 is the DHS regulation that imposes the visa-and-passport requirement on each arriving nonimmigrant alien and then enumerates the classes that do not have to present a visa. The VWP list and the 212(f) proclamations operate as exceptions or overlays on that command; they do not replace it.
The opening command is the default; the VWP paragraph and the other lettered exceptions are the only off-ramps this instrument writes, so an issuer found on none of those off-ramps remains under the visa command.
Source details
How the documents behind this regime are dated
eCFR Title 8 displayed as of 2026-08-18, last amended 2026-08-11; DHS VWP page last updated 2025-05-02; Proclamation 10998 effective 2026-01-01; Palau Compact Pub. L. 99-658 (1986-11-14).
Puerto Rico follows United States
US territory; US visa policy applies
(38) The term "United States", except as otherwise specifically herein provided, when used in a geographical sense, means the continental United States, Alaska, Hawaii, Puerto Rico, Guam, the Virgin Islands of the United States, and the Commonwealth of the Northern Mariana Islands.Open the source document
What this answer covers Limits & assumptions
Work and residence rights are separate from this check. This is the entry rule and the length of stay the instrument grants. It is not a decision about you: the officer at the border decides admission, and we do not evaluate the purpose of your trip, your passport's remaining validity, an onward ticket, funds, insurance or health requirements.
The rule is one instrument covering 1 places, so this answer is the same for United States .
Informational planning, not legal or immigration advice. The source is linked so you can check our reading.