dodmerb deadline - april??

So I hear that Navy decisions come out around mid-april, and that's when the 'Permit to Report' packet is sent out. If I am still navigating DoDMERB by then, will I not get the packet? I have an LOA and 2 nominations. I am worried about not sending the documents back in time to navy.
When does the DoDMERB stuff need to be completed by?