Check this info out:
Welcome to all the new people joining the NPIW club. For those of you that don't know already, here's what to expect.
Your cases are currently being held at the National Benefits Centre. USCIS will tell you that this is the period when 'background' checks are done. The truth is that those background checks are done before your EAD/AP cards were issued. The truth of the matter is that your cases are just being held until they can be processed. Sometimes a random case escapes very quickly but for the most part, cases remain incarcerated for many months,
After an unspecified amount of months your case will be released and forwarded to a local office for adjudication. The NBC does not adjudicate NPIW cases which they ceased doing in 2012 due to not having the necessary resources. USCIS will look to see which office in the country has the most 'spare capacity' to process your case - i.e. which is the least back-logged. This takes NO account of where you live. I live in Ohio and my case was adjudicated by the Newark NJ local office. We have also seen Florida cases adjudicated in California and NYC cases sent to Houston TX. Once again, IT IS EXTREMELY UNLIKELY THAT YOUR LOCAL OFFICE WILL PROCESS YOUR CASE.
New USCIS instructions in 2014 state that ALL medicals are now only valid for a year:
http://www.uscis.gov/news/alerts/uscis-issues-new-policy-form-i-693-report-medical-examination-and-vaccination-record You may therefore get an RFE for a new medical once your case has been transferred to a local office. Some people do, some people don't - it really depends on whether the adjudicating officer had a nice breakfast and upon which way the wind is blowing.
Thinking of calling the USCIS mis-information line? My advice is don't bother. Nothing helpful ever seems to come from this and it only results in increased frustration.
Service requests - you can raise a service request once your case is outside normal processing times. Even though your case isn't going to be processed by your local office you have to wait until your local office processing date is past your priority date. Such cases usually result in an email or letter stating that there is a further delay and USCIS are unable to state when your case will be processed. You also have the option of raising an Ombudsman enquiry.
Could your case still be sent to a local office for interview? Yes. Even after a year of waiting. Your online status will [should] be updated if this is the case.
On the brighter side, after a flurry of Ombudsman complaints a few months ago, NPIW cases do seem to be getting processed faster now.
Good luck everyone.