E Puerto Rico
Consider an applicant a U.S. citizen when they were born in Puerto Rico on or after January 13, 1941, or can provide proof of either of the following:
 
They were born in Puerto Rico on or after April 1, 1899, and a statement that they resided in one of the following on January 13, 1941:
The U.S.
A U.S. territory
Puerto Rico
They are a Puerto Rican citizen and the applicant provides a statement that they resided in Puerto Rico on March 1, 1917.