On August 27, 2016, US Customs will deploy protest filing in ACE, at which time all electronic protests must be filed via the ACE Secure Data Portal (ACE Portal). To that end, US Customs has announced that it will begin to establish ACE Protest Filer Accounts. In addition, CBP will be testing ACE Protest Module functionality. Once complete, a party with an established Protest Filer Account will be able to submit an e-Protest to ACE for processing by CBP. There are different procedures for establishing these protest accounts, depending on whether the filing party is an existing vs. new ACE Portal Account Holder. Details are available in the Federal Register.