D.C. Mun. Regs. tit. 5, r. 5-E613
No employee or labor organization shall engage in a strike, and no employee or labor organization shall call for, instigate, encourage, participate in, or condone a strike.
An employee who violates the provisions of § 613.1 of this section shall be subject to disciplinary action by the Board or its agent within the provisions of this title and any applicable law.
The Board reserves the right to exercise any available judicial remedy to enforce the provisions of this section, including action to enjoin, restrain, or punish any employee or group of employees in violation or impending violation of the provisions of this section.
The Board reserves the right to withdraw the right to automatic dues deduction, as set forth in § 611, in the event of a strike.
For purposes of this section, an employee who is absent from work without authorization from the Board or its agent, or who abstains wholly or in part from the performance of his or her duties in the normal manner in which the employee performs those duties without authorization from the Board or its agent, on any date on which a strike is deemed to have occurred shall be presumed to have engaged in that strike. The presumption created by this subsection may be rebutted by the employee.
D.C. Mun. Regs. tit. 5, r. 5-E613