Need to Copy Naturalization Card for Brother's Visitor Visa

[immihelp]

I want to call my brother to visit me in USA, I am a citizen through naturalization, to proof it I have to make a copy of my naturalization certificate but it's not allowed to copy the certificate, what is different way to do so ? Do I need to go to USCIS? Please explain to me THANK YOU.

[immihelp]

You are allowed to copy. It is a legitimate reason to copy.

[BigJoe5]

USCIS no longer routinely requires submission of original documents or "certified copies." Instead, ordinary legible photocopies of such documents (including naturalization certificates and alien registration cards) will be acceptable for initial filing and approval of petitions and applications.