I’ve been asked to remind folks that graduate programs are not supposed to be asking their prospective students to respond to admissions and financial support offers before April 15th. There are reports of at least one violation of this practice.
Students are under no obligation to respond to offers of financial support prior to April 15; earlier deadlines for acceptance of such offers violate the intent of this Resolution. In those instances in which a student accepts an offer before April 15, and subsequently desires to withdraw that acceptance, the student may submit in writing a resignation of the appointment at any time through April 15. However, an acceptance given or left in force after April 15 commits the student not to accept another offer without first obtaining a written release from the institution to which a commitment has been made.
(Thanks to Geoff Pynn for the link to the resolution.)