Originally Posted by jrhyle
I am originally from the Philippines but I had E3 Category put in my Visa Application. It was accepted and processed. So, therefore all I can say is E3 has been used interchangeably with EB3 (in some embassies maybe, no idea on this one)
But there also exists an E3 Category(as explained by Suzanne) that is only applicable to Aussies.
If you say you had E3 applicants in India, they have been in actual fact applying for EB3.
Hope this makes sense

In the realm of green cards, those of you that are nurses are in the third preference which is the EB-3 category in actual terms per what is on the US State Dept website. The E-3 in actuality is not an immigrant visa, but is for those from Australia wishing for a treaty visa. I am sure that it causes some confusion, but this is what it comes down to.
Those in India that are listed as the E-3 are actually under the EB-3, which is the third preference category when petitioned by an employer.
If you look at the list of different petitions that are available, and their classifications, it is called the EB-3, not the E-3.