From FLL HQ:
Registration Closing! US/Canada Partners FIRST® LEGO® League team registration will close for the US & Canada on Tuesday, November 10th at 5:00 PM ET. Any team that intends to register for this season must pay their registration fee to FIRST by this deadline. Once this deadline passes, payments will not be processed and teams cannot be added. Registered teams will still be able to purchase product from LEGO for a limited time after registration closes.
Unpaid teams in regions still accepting registrations will receive a Team Blast this week notifying them of this information. In addition, registered teams that do not have 2 screened coaches will also receive an email reminding them to complete screening in order to purchase product.