D.C. Mun. Regs. tit. 22-B, § 8399
8399.1 When used in this chapter, the following terms and phrases shall have the meanings ascribed:
Lateral transfer - the movement to a different job classification or department that has the same grade as the current job.
Promotion - a transfer of an employee to a higher job classification than his/her current job.
Shift change - the movement to a different shift within the same job classification.
Temporary transfer - the movement of an employee to a job classification for a limited/defined period of time.
SOURCE: Final Rulemaking published at 45 DCR 7353, 7371 (October 9, 1998).