Originally Posted by Dream becomes Reality

When. I applied for my AOS last October I didn't bother applying for a work permit because my DACA work permit was scheduled to expire in September 2016 so I had about a year. However, I would definitely apply for a work permit under the AOS category in your case because (a) you do not have to pay extra money for it, (b) if it is pending past a certain amount of time you can be granted an interim one that will allow you to continue working while your AOS is pending and (c) the Biometrics for your AOS will also cover an EAD petition as well. I think it is worth applying for, why not? Best wishes!