Hi I received EB1 green card 6 months ago. I am considering career change. Is there any requirement that i have to continue to work in my field? Is this going to be a problem during naturalization.
A green card = permanent residency. The only restriction on a permanent residency I know of is a 2yr conditional restriction if it's based on marriage to a USC/LPR. If you fulfill citizenship residency requirements there won't be any problems naturalizing no matter where you work.
Wish, here's a link that explains EB-1 requirements: http://uscis.gov/graphics/howdoi/eligibility.htm