D.C. Mun. Regs. tit. 29, r. 29-6604
A qualified individual's eligibility for IDA benefits shall end either at the end of the month in which SSA makes a final decision on the application for SSI benefits, if the SSA's decision is a denial of the application; or at the end of the month in which SSA begins payment of benefits, if the decision is favorable.
For purposes of this section, the final decision of the SSA shall be the decision by the Appeals Council of the Office of Hearings and Appeals, or the denial by the Disability Determination Division or Administrative Law Judge, if the IDA recipient fails, without good cause, to file a timely appeal of that decision.
If the decision of the Administrative Law Judge is a denial and an appeal is filed timely, the Department shall immediately make a determination whether to refer the IDA recipient for appropriate vocational rehabilitation services.
If an IDA recipient requests a fair hearing to contest the termination of his or her IDA benefits, any IDA benefits paid pending the outcome of the hearing shall terminate as of the last month of the period of eligibility, as defined in this section, regardless of whether the fair hearing process is complete.
D.C. Mun. Regs. tit. 29, r. 29-6604