A revocation means that an I-140 was initially approved and then subsequently canceled. Therefore, a revocation implies there was an initial approval. If a case has never been approved, it cannot be revoked; it can only be withdrawn or denied.

For example, let's consider a scenario: I, as your employer, file your I-140 application, and if USCIS informs us that they are denying the case due to certain problems, this constitutes a denial. This is a clear and understandable situation. However, if I, as your employer, submit a cancellation request before the case is approved, that is referred to as a withdrawal. On the other hand, if the case is already approved, and I decide to inform USCIS that I wish to cancel it, this is categorized as a revocation.

Another circumstance that leads to revocation is when USCIS has initially approved a case but later issues a notice of intent to revoke the approval. Additionally, if they discover any fraud, this is a grave matter that should not be overlooked, as it carries criminal implications and can result in a permanent bar for the employee from entering the US.

In summary, when a case is approved and subsequently canceled, whether by the employer or the government, it is considered a revocation. However, if the case is still pending, the only options are withdrawal or denial.

Question: What is I-485 Pre-adjudicate/Pre-adjudication?

You are at the last step of the green card process. Your priority dates became current, you filed the I-485, then the priority dates slipped back two years, at this time USCIS has two choices. They can either put your file in their filing cabinet and forget about the case, until the priority dates become current again. Or they can sit down and can say look we have time, let’s go over the case, adjudicate all the details, decide that the case is completely qualified to receive a green card, so we pre-adjudicate, decide that the person is entitled to get the green card. Make a note on the file. If you need some documents, we send an RFE get the documents so when the priority dates become current again all we have to do is issue the green card. That’s pre-adjudicate.

Question: How soon must I join my future green card employer? 

There is really no rule of thumb. But within a commercially reasonable period of time. Three to four months maybe, after approval of the green card, you should join the future green card employer. In your particular case that appears to be a requirement sometimes it may not be a requirement because of AC21 and remember AC21 portability is available even in future employer green card cases.

Priority Date (PD) is the date when your green card visa numbers are available. It means that you are entitled to get your green card. It doesn’t mean you can get it right away. But it means you are in a stage were you are about to get your green card. So Priority Date is usually the date on which your application was started. In case of family based petitions Priority Date is when I-130 was filed. In the case of Employment based cases it is based upon when PERM was filed. Employment based cases were PERM is not involved, direct I-140 is involved such as National Interest Waivers, EB-1s - Priority Date is the date you file the I-140. Your Priority Date depends upon the date your case was started. That’s one thing you got to worry about.

 When you go to Visas Bulletin which is a monthly publication of the US Department of State it tells you what visa dates are expected to be curbed or in other words where the queue is for the next month. So in December they will issue predictions for January, in January they will issue predictions for February, then on top of that you have to worry about processing times. Sometimes for e.g.: in US Citizen’s cases there is no Priority Date back up, dates are immediately current for e.g.: spouse of a US Citizen, parent of a US Citizen, minor unmarried child of a US Citizen, there are no Priority Date   issues here. In these cases, you have to worry only about the processing times. So when you file the form the form takes set amount of time to process. Now a new concept has been started a couple of months ago, if you go to the USCIS website it tells you if you are in the United States this is the date when you can file your last step of the green card process. If you are outside USA this is the date, you can expect to receive further paper work from the consulate. It doesn’t mean you are going to get your green card right away but you are eligible or close to getting it.

Here is another variable. How much time is it taking at that consulate to schedule interviews. Some consulates are heavily overworked. Some consulates are relatively less worked. So that’s the fourth variable. First variable was Priority Date, second variable is processing times, third variable is final action dates which is also the part of Visa Bulletin a slightly different table, and the fourth is the local processing times.

Question: How can I calculate my sister's possible visa interview? I am confused with these changes on final action date etc. Her PD is 1 Feb, 2011 visa category F2B. She has already submitted dox to NVC. When she was waiting for the visa date she turned 21 and moved to f2b cat.1. When do you think it will be? Which table to consider? At the Visa bulletin one, I mean. 

First of all, if her Priority Date is current normally within a few months, probably less than six months. At the Visa Bulletin the final action table tells you approximately when she can expect her final documents.

Question: Once the other parent becomes citizen in USA would it be helpful to submit another petition for her? Would you advise it to be in the safe side? 

You can. You can file multiple cases for the same individual. That is not a problem. As long as you see some gain in it depending upon the country she was born in, in filing through two separate categories you can certainly do that.