Can I file I-90 to renew an expired green card or replace a lost or damaged green card after submitting an N-400?

Consider making an INFO Pass appointment.

The USCIS offers the following guidelines for green card holders who want to renew or replace their green card after filing for naturalization: 1) If your green card was lost AFTER you submitted Form N-400 - USCIS states that you may not necessarily need to request a replacement. You can go to www.uscis.gov and make an INFO Pass appointment to request temporary evidence of your permanent resident status. 2) If your green card expires AFTER you submitted Form N-400 - Generally, the Immigration Service Officers at the local USCIS office may issue you a temporary I-551 ADIT stamp while the naturalization application is pending for emergency reasons only. CITATION: Page 72. http://www.uscis.gov/sites/default/files/USCIS/About%20Us/Electronic%20Reading%20Room/Customer%20Service%20Reference%20Guide/Permanent-Residents4-3.pdf