sind27

No need to worry, if you do not get an interview by the time your petition expires the CO (Consular Officer) at the Consulate at your interview will automatically extend the validity of your petition.

ROC=Removal of Conditions

AOS could also mean Adjustment of Status.
ROC ~ Removing Conditions on Residency.
You only need I-864 during the Adjustment of Status(applying for Green Card, US permanent residency), after entering US with K1 visa and gotten married.

Our I-129f was processed at TSC and I got a message via email and text that it shipped to NVC. Our file was shipped 2 weeks after NOA2, but another Sept filer on this thread got NOA2 on the 12th November and the file just shipped yesterday. He was also notified that the file was shipped from TSC to NVC.

Yes, but it took 4-5 weeks to be at NVC. NVC replied to my email and gave me the JRS#. Letter from NVC saying they sent to embassy arrived almost exactly 6 weeks after NOA2 hardcopy arrived.

Packet 3 I found on the embassy/consulate web page. Google is your friend.
However, here is a good place. http://santodomingo.usembassy.gov/niv-e.html Remember, not all embassy's consulates send a packet 3. It says this under the K3/K4: First: The Consular Section does not mail Packet 3 to applicants, only mail Packet 4 (appointment letter). Instead, fill out, electronically Form DS-160

hello sind27, im not sure what is the process in your country, but in Philippines as long as we received the case number from NVC we can schedule our own interview.

TSC shipped our file to NVC 2 weeks post NOA2. There seems to be a bit of a slowdown with shipping now. Hmmmmm.

I called the USCIS so im waiting fir a tier 2 to call me back.... wish me luck...