48 U.S.C. § 737 : US Code - Section 737: Privileges and immunities

Search 48 U.S.C. § 737 : US Code - Section 737: Privileges and immunities

The rights, privileges, and immunities of citizens of the United
States shall be respected in Puerto Rico to the same extent as
though Puerto Rico were a State of the Union and subject to the
provisions of paragraph 1 of section 2 of article IV of the
Constitution of the United States.