Puerto Rican citizenship
A 1918 official report from the American colonial governor of Puerto Rico to the U.S. Secretary of War, this one after the Jones Act of 1917, had become law, states that the "passports...[are used to] prove a person's nationality," thus making clear that Puerto Rican citizenship and Puerto Rican nationality were one and the same. The United States government also recognizes this status in its own records. For example, the CIA World Fact Book, states that the nationality of Puerto Ricans is not "American" but, in fact, ""Puerto Rican"." The Spanish Government also recognizes Puerto Ricans as a people with Puerto Rican, "and not American," citizenship. It also provides Puerto Rican citizens privileges not provided to citizens of several other nations, such as Haití, Jamaica, Trinidad y Tobago y Guyana. Since 2007, the Government of Puerto Rico has been issuing "Certificates of Puerto Rican Citizenship" to anyone born in Puerto Rico or born outside of Puerto Rico with at least one parent who was born in Puerto Rico.
Puerto Ricans in the United States
According to the 2010 US census, of the stateside Puerto Rican population, about 53.1% self-identified as white, about 8.7% self-identified as black, about 0.9% as American Indian, about 0.5% as Asian, and 36.7% as mixed or other. Though over half self-identified as white, the Puerto Rican population is largely made up of multi-racials, most Puerto Ricans are mixed to varying degrees, usually of white European/North African, black West African, and indigenous Taino ancestry. The average genomewide individual ancestry proportions have been estimated as 56% European, 28% West African, and 16% Native American. However, there are significant numbers of (pure or nearly pure) blacks and whites within the Puerto Rican population as well. Historically, under Spanish and American rule, Puerto Rico underwent a whitening process, in particular, the island had laws like the "Regla del Sacar", in which people of mixed-race origin were identified as "white", the opposite of the one-drop rule in the United States.