RD = Received Date (date when your application was received by USCIS)
ND = Notice Date (date on the notice)
AD = Adjucated(Approved) Date
LUD = Last Update Date (last posted date on a USCIS.gov when your case was touched)
And you forgot
PD = Priority Date (date you established with the start of your process, used for visa availability)
RD and ND are usually few days apart.
LUD can be obtained by creating an account on USCIS.gov and adding your cases.
PD is very important for countries with not current state in visa bulletin. Only when your PD is current you can submit i485. For EB3 all countries are in retrogressed state.
ND = Notice Date (date on the notice)
AD = Adjucated(Approved) Date
LUD = Last Update Date (last posted date on a USCIS.gov when your case was touched)
And you forgot
PD = Priority Date (date you established with the start of your process, used for visa availability)
RD and ND are usually few days apart.
LUD can be obtained by creating an account on USCIS.gov and adding your cases.
PD is very important for countries with not current state in visa bulletin. Only when your PD is current you can submit i485. For EB3 all countries are in retrogressed state.