Headstart reservations are first made available to those eligible customers making such reservations by mail (addressed to the Authority's Mashpee Reservation Office only) or over the internet at the Authority's website, beginning on a date designated by the Authority (“Opening Day”) which is usually during the first week of January. Headstart reservation requests may be submitted by mail in advance of Opening Day, and all such requests received on or before Opening Day will be processed by the Authority at the start of business on Opening Day in the order of date received. Headstart reservation requests may also be submitted over the internet at beginning at 8:00 a.m. on Opening Day (provided the customer has registered with the Authority and has been issued an appropriate profile number and pin number to access online service). The Authority does not accept faxed or emailed Headstart reservation requests. The Authority also designates a later date when it will accept Headstart reservation requests by telephone as well as by mail and over the internet (“Telephone Opening Day”). Finally, the Authority designates a date after the Telephone Opening Day for the completion of the Headstart Program, and the remaining spaces for periods during the Authority's summer schedules are placed into the pool of spaces available for reservations by the general public on that date.