D.C. Mun. Regs. tit. 8-B, § 1450 – Faculty Separation From the University

1450.1 Faculty members may be separated from the University in the following five ways:

(a) Resignation;
(b) Retirement;
(c) Non-reappointment, in accordance with the provisions of §1440;
(d) Termination for cause, in accordance with chapter 15 of this title; or
(e) Reduction-in-force ("RIF"), in accordance with the provisions of §§1451 through 1459 of this chapter.

1450.2 A faculty member shall give written notice of intent to resign at least one (1) semester prior to the effective date of resignation. Exceptions may be made in unusual circumstances.