A list of abbreviations to help you understand anything in some immigration topics:
AD - Approval Date (When your application was approved)
AOS - Adjustment of status
AOS - Affidavit of Support (Department of State definition,
AOS means Affidavit of Support )
AP - Advance Parole (I-131): The authorization to travel outside the US while your adjustment of status is pending
AR - Administrative Review
ASC – Application Support Center: offers fingerprinting services
BC - Birth Certificate Bio - Biometrics (Digital photo, index finger FP and your digital signature. This is needed for the production of GC.
CP - Consular Processing
CPR - Conditional Permanent Resident
CWOP - Cancelled Without Prejudice
DCF - Direct Consular filing
DHS - Department of Homeland Security
DL - Drivers License
DMV - Department of Motor Vehicles
DO - District Office
DORA - Dallas Office Rapid Adjustment of Status
EAC - Eastern Application Center
EAD - Employment Authorization Document (I-765, approval to work while waiting for AOS Approval)
FP - Finger Print
GC - Green Card INFOPASS - Is an online appointment so you can go to your DO if you have a doubt or want to know something about your case in person or to request your iEAD INS - Immigration and Naturalization Service
ID - Interview Date
IO - Immigration officer / Interviewing officer
LPR - Legal Permanent Resident
LUD - Last Update Date on your on-line portfolio at USCIS website. It is the date when they last took action on your application, could be anything.
MSC - Missouri Service Center
NBC - National Benefit Center (is the one which process your forms initially)
ND - Notice Date (When USCIS notified you that they received your application)
NOA’s - Notice of Action is your receipt/letter that you received after you filed your forms indicates I-797C
NVC - National Visa Center
PCC - Police Clearance Certificate
PD - Priority Date
POE - Port of entry
RD - Receipt Date (When USCIS received your application)
RFE - Request for Evidence
RFI - Request for Initial Evidence
SC - Service Center (this is used with a prefix, eg CSC - California Service Center;
MSC - Missouri Service Center (that is the address from where you will received your NOA's)
SSA - Social Security Administration
SSN - Social Security Number
USC - US Citizen
USCIS- U.S. Citizenship and Immigration Services
VSC - Vermont Service Center
WAC - Western Application Center