D.C. Mun. Regs. tit. 20, r. 20-1299
The meanings ascribed to the definitions and abbreviations appearing in § 199.1 and §199.2 of this title shall apply to any terms in this chapter not defined below. Additionally, the following definitions shall apply to the terms as used in this chapter:
Demand response generating source - means a stationary generator subject to an agreement or obligation to provide power in response to power grid needs, economic signals from competitive wholesale electric markets, or special retail rates. The term "demand response generating source" shall not include a generator that derives its energy from an energy source that qualifies as a tier one renewable source under the Renewable Energy Portfolio Standard Act of 2004, effective April 12, 2005 (D.C. Law 15-340; D.C. Official Code §§ 34-1431et seq.).
D.C. Mun. Regs. tit. 20, r. 20-1299