everyone seem to agree that did in fact derived citizenship at birth and passport is one of the ways to go. either way i know i can still file for the n600.
Correction, you did, in fact, ACQUIRED Citizenship at birth. Derived is a whole different story. let me explain:
U.S. citizenship can be obtained in one of four ways:
* birth in the United States or its territories
* birth to U.S. citizen parents (called "acquisition" of citizenship) ''which is your case''
* naturalization (obtaining citizenship after an application and exam), or
* naturalization of one's parents (called "derivation" of citizenship). ''and this isn't your case as you said he naturalized in the 70's and you were not even born by then therefore your citizenship is through acquisition because when you were born he was already a U.S. Citizen meeting all the requirements: (5 years of residency, 2 of those being after his 14th birthday.) also meaning that even if you pass your 21st birthday, you are still considered a U.S. Citizen. ( this case only applies if you are an LPR so as your dad and your dad naturalizes himself, then after his naturalization you become a U.S. Citizen through derivation).
I would say that if you were born to a U.S. Citizen and this person meets the residency requirements, you become automatically, at the time of your birth, a U.S. Citizen, no doubt about that. The only tricky part is which laws were in effect at the time the person in question was born. for example if a person was born on November 12th, 1986 and another person is born November 15th, 1986, they both will have different requirements to meet before actually saying ''I acquired citizenship at birth.''
Now, if a person is born November 16th, 1986, and the American parent doesn't meet the requirements of residency PRIOR the child's birth then that's not considered acquisition of citizenship and therefore that's when Green Card becomes an option.
Oh, by the way, Congratulations locod64, it seems like you're doing some good progress and you'll get your passport soon.