To make an inquiry to the National Visa Center (NVC) or the U.S. Citizenship and Immigration Services (USCIS), you must follow the specific procedures established by each organization. Here’s a breakdown of the steps and requirements for contacting both:

1-National Visa Center (NVC):
-Public Inquiry Form
-Required Information

2-U.S. Citizenship and Immigration Services (USCIS):
-e-Request
-Required Information