Rico. (B) Federal law All of the laws of the United States shall have the same force and effect as on the date immediately prior to the date of admission of Puerto Rico into the Union as a State, except for any provision of law that treats Puerto Rico and its residents differently than the States of the Union and their residents, which shall be amended as of the date of admission to treat the State of Puerto Rico and its residents equally with the other States of the Union and their residents. (4) United States citizenship No provision of this Act shall operate to confer United States citizenship, nor terminate citizenship hereto lawfully acquired, nor restore citizenship terminated or lost under any law of the United States or under any treaty to which the United States is or was a party. 8. Severability If any provision of this Act, or any section, subsection, sentence, clause, phrase, or individual word, or the application thereof to any person or circumstance is held invalid, the validity of the remainder of the Act and of the application of any such provision, section, subsection, sentence, clause, phrase, or individual word to other persons and circumstances shall not be affected thereby.