D.C. Mun. Regs. tit. 8-B, § 1138
1138.1 An employee who is terminated during a reduction-in-force shall be placed on a preferential hiring list for a period of one (1) year. Hiring preference shall be based on the inverse order of reduction in each work unit. The provisions of this subsection shall not apply to grant-funded employees.
1138.2 If an employee is offered a position comparable in responsibility and pay to his or her previous appointment and declines the offer, that employee's name shall be removed from the preferential hiring list.
1138.3 An employee shall not be recalled out of order except where it is determined that a more senior employee does not meet the requirements for the position.
1138.4 An employee in a position that has been identified for transfer to another department shall be given an opportunity to transfer to the other department instead of separation or reduction in grade/level in the present department.
1138.5 An employee who is given the opportunity to move to a department under the provisions of §1138.4, or to any other department, and who refuses the transfer shall be terminated.