The Summer Immersion Program application period is divided into two phases: an early acceptance round and a regular acceptance round.
The main difference is that applicants who are waitlisted during Phase One will receive priority consideration in Phase Two applications. (For additional instructions on how to fill out the application, check out this tutorial video.)
Phase One (Early Acceptance) of the application period will take place from mid-January through February 15, 2019. Phase One applicants will be notified of their acceptance by mid-March, 2019.
Phase Two (Regular Acceptance) of the application period will take place from mid-February through March 15, 2019. Second round applicants will be notified by mid-April, 2019.