这是约见信吗

U.S. Consulate General43 Hua Jiu Road, Zhujiang New TownTianhe DistrictGuangzhou, China510623
Case Number: GZO201******
Name  (P)  : ZHENG,******
Preference Category: F4 - CHIN
Your Priority Date : 25 MAY 2002
Traveling Applicants:
(P)  ZHENG, *****                            28 APR 1974
(S)  PENG, ****                               19 SEP 1979
(C)  ZHENG, ******                          07 APR 2005
(C)  ZHENG, *******                            21 AUG 2013
{REL1}ZHENG, GANGYI
F, E visa applicants
Important: ALL applicants will need to register directly through our authorized partner CGI Stanley for visa interviews and passport delivery. Only those applicants who register through CGI Stanley will be able to receive their passport after their visa has been processed. Please follow the instructions below to register with CGI Stanley prior to the visa interview.
Dear Applicant, Petitioner, or Agent of Record:  
This office is ready to begin final processing of the immigrant visa applicant(s) named above in this case. Please follow these steps to prepare for the interview:

Once you receive this notice, please visit          to register your chosen delivery location.  If you have already registered, you do not need to register again. Failure to register prior to your visa interview will result in delay of your visa application.

最小的孩子是广发后加入的。请问这个是约见信。已经面签预约了时间。但不知道约见信在那。这个邮件是约见信吗？？急