Final answer:
When born outside of the U.S, you must have a certificate of naturalization to become a U.S. citizen. Another certificate is a consular report of birth abroad for children born to U.S. citizen parents.
Step-by-step explanation:
When born outside of the U.S, you must have a certificate of naturalization if you want to become a U.S. citizen. This certificate is issued to individuals who have completed the process of naturalization and have met all the requirements, including being at least 18 years old, a lawful permanent resident, residing in the U.S. for at least five years, having good moral character, and being able to speak, read, write, and understand the English language. It serves as proof of one's citizenship.
Another certificate that individuals may have is a consular report of birth abroad. This certificate is issued to children born abroad to U.S. citizen parents. It establishes their U.S. citizenship and serves as proof of their eligibility for U.S. citizenship.