For students new to the city or returning to city schools after an out-of-school hiatus, the DOE is opening Registration Centers, beginning Monday August 25th. The centers will be open from 8am-3pm, but will be closed on Labor Day. A few caveats:
Registration centers can enroll all new high-school students and elementary and middle-school students without a zoned school. (Go to a registration center in the borough where you reside.) If you have a zoned elementary or middle school (call 311 or visit the DOE for information), register there beginning September 2, the first day of school.
Families of special-needs students who will be in collaborative-team-teaching (CTT), self-contained, or District 75 placements should visit their Borough Enrollment/Committee on Special Education office to register.
In order to register, parents and other guardians must bring proof of residence (see particulars here for what's required). Also bring your child's birth certificate (or passport), immunization record, and latest report card or transcript, if one is available. Special needs families are encouraged to bring their child's IEP and/or 504 Accommodation Program if they're available.
Registration centers will remain open until September 12th. And along with all the paperwork, don't forget to bring your child -- parents who show up sans students will not be permitted to complete the registration process.