US WORK PERMIT TIMING?

Is your wife already done with biometrics?Work permit and green card are processed separately by a different USCIS Office.Since it's already past 90days since the application you can make an Infop appointment for her work permit so you will know the status of her EAD.However, if she will be having an interview on April 15 asking for a schedule of Infop might be a wasted effort esp. if she will get approved.If that will be the case, she might be getting her green card first and she will not need anymore a work permit.