Most of the time, regardless of your filing category, when RFE is issued under the employment based I-140, it can be seen as employer ability-to-pay the proofed salary, your education requirements to fulfill the job, your previous past experiences. Especially Nebraska Center was notorious in issuing RFE to the applicants who filed using his/her foreign degree credentials. Recently they have relaxed a little bit. Employer ability-to-pay has also been seen in recent days. I am not sure why people get so nervous when they see RFE. To be honest with you, when they send you RFE, one should be happy to know that USCIS is NOW working on his/her petition which is a good sign, as considering 95,000 I-140 backlogs which was reported a month ago. This figure must have gone high as they have halted the premium service indefinitely. laborperm@gmail.com Regrads, LaborPerm laborperm.blogspot.com