D.C. Code § 50-2206.51
(a) If as a result of the operation or the physical control of a vehicle, or a watercraft, a person is tried in any court of competent jurisdiction within the District of Columbia for operating or being in physical control of a vehicle, or a watercraft, while under the influence of alcohol in violation of § 50-2206.11, § 50-2206.12, or § 50-2206.31, negligent homicide in violation of § 50-2203.01, or manslaughter committed in the operation of a vehicle in violation of § 22-2105, and in the course of the trial there is received, based upon chemical tests, evidence of alcohol in the defendant’s blood, breath, or urine, such evidence shall:
(b) The rebuttable presumption contained in subsection (a)(1) of this section shall not apply if:
Sept. 14, 1982, D.C. Law 4-145, § 3p
as added Apr. 27, 2013, D.C. Law 19-266, § 103(e)(3), 59 DCR 12957
For temporary (90 days) addition of this section, see § 103(e)(3) of the Comprehensive Impaired Driving and Alcohol Testing Program Second Congressional Review Emergency Act of 2013 (D.C. Act 20-51, April 17, 2013, 60 DCR 6344, 20 DCSTAT 1360).
For temporary (90 days) addition of this section, see § 103(e)(3) of the Comprehensive Impaired Driving and Alcohol Testing Program Congressional Review Emergency Act of 2013 (D.C. Act 20-3, January 29, 2013, 60 DCR 2762, 20 DCSTAT 410).
For temporary (90 days) addition of this part, see § 103(e)(3) of the Comprehensive Impaired Driving and Alcohol Testing Program Congressional Review Emergency Amendment Act of 2012 (D.C. Act 19-508, October 26, 2012, 59 DCR 12774).
The 2013 amendment by D.C. Law 19-266 added this section.