Helpful Hints: IV Processing - Travel
https://travel.state.gov/content/travel/en/us-visas/immigrate/the-immigrant-visa-process/step-1-submit-a-petition/step-2-begin-nvc-processing/helpful-hints-iv-processing.html
WEBIf you received a Welcome Letter from NVC: please visit the Consular Electronic Application Center (CEAC), https://ceac.state.gov/iv, to check the status of cases processing electronically as well as documents needed. You will need your NVC Case number and invoice ID number from your welcome letter.
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