D.C. Mun. Regs. tit. 25, r. 25-B3700
A person who receives a notice of hearing for an administrative remedy as specified in this chapter and elects to respond to the notice shall file a response to the notice within seven (7) calendar days after service.
In response to an adverse administrative action, a licensee or dealer may submit a written request for a hearing to the Department within fifteen (15) calendar days of the receipt of notice of adverse action.
A hearing request shall not stay the Department's restriction or exclusion of employees specified in sections 3301 and 3302, an embargo order as specified in section 3503, a condemnation order as specified in section 3510, or the imposition of a summary suspension as specified in section 3516.
D.C. Mun. Regs. tit. 25, r. 25-B3700