No, an underage US resident cannot directly apply for US citizenship. However, they may be eligible for US citizenship if their parent or legal guardian qualifies and applies for them. The child would need to meet certain requirements, such as being a green card holder and having lived with their parent or guardian in the US.
Kids born in the US are citizens by birth. The certificate of citizenship should be got as proof for the same. Form N-600 can be used to get the citizenship certificate.
3 years of being permenent resident then you can apply
Basic criteria to apply for US citizenship is to be 18 years of age. If you were born in US you qualify to get the certificate of citizenship by applying for it using Form N-600.
Serve in the US army.
Must be a citizen of the U.S., must be a resident of the U.S., must be at least 18 years of age, must be registered to vote (except in North Dakota).
If you have been in the US for more than 5 years as a legal resident and over the age of 50, I believe, the citizenship is automatically granted but you still have to memorize and pass the citizenship test.
5 Yrs as a legal resident.
No you must be a citizen.
According to http://www.america.gov/st/usg-english/2008/January/20071128090847abretnuh0.9317591.html, the requirements are US citizenship for at least 9 years, 30 years of age, and a resident of the state he/she is being elected from. I believe that the dual citizenship does not change anything.
Yes, the child is eligible. The child is automatically a Citizen of the United States under the Immigration and Nationality Act ("INA"), Section 320!
As far as i know the parent would have to first become a citizen, moving them from legal resident status, once the parent files for US citizenship he/she also files for the underage child/ren. the under age child/ren then automatically become citizens the same time as the parent. This is what my father in law and many others i know did when they migrated to the US.
If you are not a resident, you are probably not a legal resident, however, you might be a legal resident of the last state where you lived. It depends on circumstances. The question of citizenship is a different question. If you moved the Greece as a child, you may need to choose between one or the other.
The citizenship requirements for the US Senate are being a US Citizen for nine years and living in the state you represent. The age requirement is 30 years old.