The FATCA registration website is projected to be accessible to financial institutions on August 19, 2013. Other key dates for registration, however, will be extended by six months. After the FATCA registration website opens, a financial institution will be able to begin the process of registering by creating an account and inputting the required information for itself, for its branch operations, and, if it serves as a "lead" financial institution, for other members of its expanded affiliated group. All input information will be saved automatically in the registration system and associated with the financial institution's account.
For more information, view the IRS bulletin regarding this matter.