The choice between the several options (Chick Chack, FedEx, UPS, USPS) depends upon the time sensitivity of the package in question. For urgent local, same-day service, Mail Services uses Chick Chack Messenger Service at 212.244.8577. For overnight service, FedEx has the best service available (Priority for the next morning, Standard for overnight service, and Economy two-day and three-day service), for which The New School has a daily 4:00 p.m. pickup in Mail Services at 55 West 13th Street, lower level. For less urgent deliveries and packages going to a P.O. box, the USPS offers Express Mail (overnight), Priority Mail, and Parcel Post. Please call Mail Services for rates and additional information.