what is experience letter?

[jazki]

I am applying under EB3. I checked several websites and I don't see anywhere that says you have to submit experience letter. What is experience letter anyway???

Are there specific categories that require this 'experience letter'? Could someone tell me who and what this is for?

Thank you.

[Buzz07]

https:///usa-immigrant-visa-process/...rant-visa.html

You will have get this kind of letter from all your previous employers.