It is vital - you must have it. You should speak to a lawyer about alternatives. Call your employer's immigration attorney. If your employer doesn't have one, smarten up and hire one.
This response is not a substitute for specific legal advice and it should not be construed to create an attorney-client relationship.
You just have birth certifate or an acceptable explanation of why you don't. This is not just a letter from you. You need to consult with a lawyer.
It is very important. You didn't tell us why you don't have one.
This answer is for informational purposes only and should not be construed as legal advice.
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