This Faculty Handbook is intended only to provide information for the guidance of Columbia University faculty and officers of research. The editors have exercised their best efforts to ensure the accuracy of the information it contains, but accuracy is not guaranteed. Anyone who needs to rely on any particular matter is advised to verify it independently. The information is subject to change from time to time, and the University reserves the right to depart without notice from any policy or procedure referred to in this Handbook. The Handbook is not intended to and should not be regarded as a contract between the University and any faculty member or other person.