List of Special Registration Countries
Hi Solan,
There's no special category for I-140 as "Special Registration Country". I just wrote that to elaborate that I'm from a special registration country. SR Countries are in 4 groups,
1. Iran, Iraq, Libya, Sudan, Syria
2. Afghanistan, Algeria, Bahrain, Eritrea, Lebanon, Morocco, North Korea, Oman, Qatar, Somalia, Tunisia, United Arab Emirates, Yemen
3. Pakistan, Saudi Arabia
4. Bangladesh, Egypt, Indonesia, Jordan, Kuwait
If you are from one of these countries, you are required to undergo a special registration procedure with BCIS at the port of entry or if you stay for more than a month in US. BCIS may do a background check on you, which can cause a delay in processing in I-140 as compared to other countries.
Hope it clarifies, for more detail on special registration:
http://www.immigration.gov/graphics/shared/lawenfor/specialreg/index.htm
K.