This is cut & pasted from CPS’s website:
Principal Discretion is a process that allows Selective Enrollment High School principals to fill a designated number of ninth grade seats, outside of the regular selection process, based on information provided through application packages submitted by students.
Applicants to ninth grade can apply to a Selective Enrollment school through the Principal Discretion process if they (1) did not receive a Selective Enrollment offer, or (2) they received a Selective Enrollment offer but would like to be considered for a different Selective Enrollment High School. (You do not have decline an offer in order to apply for Principal Discretion).
The Principal Discretion application period for the 2018-2019 school year begins at 9 am on April 9th and ends at 6 pm on April 20th. The application will be posted beginning on April 9th. Click the links below to access the Principal Discretion Handbook and Frequently Asked Questions. The handbook provides step-by-step instructions for submitting a Principal Discretion application package and contains the guidelines and requirements for the process.