This could possibly go in one of the "Important / FAQ" threads (if it's not there already). Here's some of them...
FP: Refers to FingerPrinting (needed eventually for the I-485)
ND: The Notice Date for an application. This is the date which prioritizes the processing of your application and which is refered to in the VSC processing times
RD: The Receipt Date for an application. Not terribly useful -- the ND is the key date.
AP: Advance Parole. Needed if you are working under an EAD and you want to leave / re-enter the US without having your I-485 considered to be abandoned.
EAD: Employment Authorization Document.
AOS: Adjustment of Status (I-485).
CP: Consular Processing. Alternative to AOS -- once you get your I-140, your green card is adjucated at your country's consulate (e.g. Montreal for Canadians).
ETA
FP: Refers to FingerPrinting (needed eventually for the I-485)
ND: The Notice Date for an application. This is the date which prioritizes the processing of your application and which is refered to in the VSC processing times
RD: The Receipt Date for an application. Not terribly useful -- the ND is the key date.
AP: Advance Parole. Needed if you are working under an EAD and you want to leave / re-enter the US without having your I-485 considered to be abandoned.
EAD: Employment Authorization Document.
AOS: Adjustment of Status (I-485).
CP: Consular Processing. Alternative to AOS -- once you get your I-140, your green card is adjucated at your country's consulate (e.g. Montreal for Canadians).
ETA