I'm us citizen and I want to apply for my mother for green card..she is in usa...I lost my certificate of naturalization..can I apply only with my US

USCIS will allow you to apply for your mother using your US passport. It is not a requirement to file the petition with only a certificate of naturalization. We have successfully represented many cases in the past in which the petitioner only had a US passport and not certificate of naturalization. We have never received a request from USCIS for a naturalization certificate under those circumstances. Due to the limitations of the Lawyers.com Forums, Alan Lee & Arthur Lee, Esqs.’ (the "Firm") participation in responding to questions posted herein does not constitute legal advice, nor legal representation of the person or entity posting a question. No Attorney/Client relationship is or shall be construed to be created hereby. The information provided herein by the Firm is general, and requires that the poster obtain specific legal advice from an attorney. The poster shall not rely upon the information provided herein as legal advice nor as the basis for making any decisions of legal consequence.