No objection letters are essential when working on a visa application here's everything you need to know about how to write them. NOC is the official authorization letter that proves this which you have to get from your employer.This is especially useful if you are in a government job. Such a letter should be on the official letterhead of the employer and signed. The No Objection Certificate from Employer is one of the most important documents when applying for a B-1 visa. Even though this is not a required document, This document is helpful when applying for a B-2 visa as it supports to strengthen your case. Venture Gulf Group has no objection to Mr. XXXXXXX obtaining a visa to visit XXXXX.