Customs clearance time of American immigration materials

In general, the consulate will receive the information from NVC within 2-3 months after the file is transferred and scan the information on the computer. So they are right to suggest that you inquire about the news in April. After receiving your file, there will be a regular background check, about 2-3 months, so you have to wait at least 4-6 months to arrange an interview date. All immigration files need to go through this procedure, so don't worry.