回复：是不是，只要曾经有H-1B，因被laid off 就转成别的身份，例如F-1，以后找到工作，再申请H-1B，也不会有quo

Yes, you will not use quota within 6 years.

But where does the 6 year count start, I don't know. It could start from the date when your H1B was effective, or the date when you lost your job and H1B becomes invalid.

Of course, you need to be either out of US or in valid status after you lost your job.