D.C. Mun. Regs. tit. 18, § 3013
3013.1 Upon the making of a determination sustaining the charges and the fixing of fines and assessment of penalties, or a determination dismissing the charges, the hearing examiner shall cause the final determination to be recorded.
3013.2 In cases where a respondent's license or privilege to drive is withdrawn, the hearing examiner will include in the determination a statement of findings of fact and conclusions of law.
3013.3 Findings of fact must incorporate basic facts upon which conclusions are based. Mere conclusory assertions or summaries of evidence shall not be sufficient for use as a basis for findings of fact within the meaning of this section.