nguyen407

You can complete the DS-160, Online Nonimmigrant Visa Application now as you will need the confirmation number when you go to schedule your interview.
 
Here is some information including the Embassy P3 for you to get a head start. This can be found on your embassy's website so there isn't a need to wait for instructions from the embassy.
 
P3 Letter
https://vn.usembassy.gov/visas/immigrant-visas/required-documents/
 
https://vn.usembassy.gov/wp-content/uploads/sites/40/K-Instruction-Package.pdf
 
Usually, you will not receive the P3 letter in the mail. Do an online service request. They will respond typically in 2 -3 days with the instruction (P3). You will need to submit D-160 and pay the visa fee, then schedule the medical afterward. Technically, you will need the P3 to complete the medical exam, although some have gotten by with just the interview confirmation. I wouldn't risk it and would just request that they email it to you via: https://vn.usembassy...a-inquiry-form/.  When using the form be sure to add in the comments section the last 4 digits of your SSN or they will email you back asking for it which causes further delays.
 
If you find anything not up to date or the information is wrong, please share your findings. Please compare the date of the P3 of mine with the date from your copy, once you receive yours from your embassy. Keep in mind that I try and be factual with my information, but I can't do it on my own and that's where you come in and can give back to the community those who come behind you. Without others ahead of you I would not be able to provide this to you.  I can only share factual information if folks like you continue to be my eyes and ears for your embassy. I wish you much success in your visa journey.

Thank You ttigiras

All,
I would like share my experience and the time I submitted K1 Visa for my Fiance. I submitted my K1 visa on March 16, 2020 I got NOA-1 2 weeks after that. On Oct 28, 2020 I got a letter NOA-2 that my case has been approved sent to NVC for further process. So on Dec 8th, 2020 I got email from NVC included case number and they forward my case to Embassy or Consulate in Ho Chi Minh city in Vietnam. On Dec 10th, 2020 i went online and check my Visa Status and indicated that "Ready". Here is my question how long  would it take for my fiance receive the letter from Embassy to start fill up DS 160 and other papers work? If anyone had any input or experience would like to share i really appreciate it.
 
Thanks in advance.
Chris

Mac OSX’s native preview app lets you place arbitrary text fields anywhere on a pdf page. Obviously it for me.  

i left preparer blank because they ask if you used one and if you checked no then nothing more should be needed.

N/A in my opinion.

You are correct for a printed form.  I was thinking about some of the recent USCIS forms which van be done online.  I have read that they do not allow anything but a date.....
 

You can print out the completed form once you’ve typed all the correct information and then simply add with black pen “N/A”, the word “present”and whatever other info is needed. I would not suggest putting today’s date if your still working for the same employer or that will appear the job ended as of the date you add.

Another option is to print the form and had write "Present"