D.C. Mun. Regs. tit. 6, r. 6-B235
A temporary promotion occurs when an employee is reassigned to a different position at a higher equivalent grade or to a position with additional promotional potential to meet a time-limited employment need.
Temporary promotions may be made to positions within an agency or to another agency under the same personnel authority. A temporary promotion is also authorized between personnel authorities provided both authorities agree to the temporary promotion.
Temporary promotions shall last no fewer than thirty (30) days and, except as provided in § 235.7, no longer than four (4) years to fulfill a specific time-limited need or project.
An agency may temporarily promote an employee without competition for no longer than 180 days. Agencies shall use competitive appointment procedures for temporary appointments that exceed 180 days.
Employees who are temporarily promoted shall be notified in writing as to the terms of the temporary promotion, including the date the promotion expires.
The personnel authority may extend a temporary promotion so long as the total length of the temporary promotion does not exceed four (4) years, except that this period may be extended as provided in § 235.7. Any changes in the terms of a temporary promotion, including its duration, shall be reduced to writing and provided to the employee.
When a temporary promotion is supported by grant funds, the personnel authority may extend a temporary promotion beyond the four (4) year limit, provided the grant supports a specific, time-limited project and is not indefinite in nature.
Upon fulfillment of the temporary employment need, completion or termination of the assigned project, or the expiration of the temporary promotion, whichever occurs first, the agency shall return the employee to the position from which he or she was temporarily promoted or to a position with equivalent pay and promotional potential for which he or she is qualified.
Competitive temporary promotions may be made permanent without further competition.
D.C. Mun. Regs. tit. 6, r. 6-B235