D.C. Mun. Regs. tit. 31, § 1207
1207.1 Each application (including a renewal application for a limousine operator's license) shall be accompanied by a certificate from a physician who is a resident of the metropolitan area, certifying that the applicant is not afflicted with any disease or infirmity which might make the applicant an unsafe or unsatisfactory driver of a limousine.
1207.2 The physician's certificate shall be on a form provided by the Office and shall provide for any additional information relating to the applicant's past or present medical history as the Commission may consider necessary.
1207.3 The certificate shall be executed by the certifying physician within thirty (30) days of the date of filing the application.
1207.4 Each application (including a renewal application) shall be accompanied by a certificate signed by the applicant on a form provided by the Office certifying that to the best of the applicant's knowledge and belief, the applicant has no disease or disability that would render the applicant unsafe or unsatisfactory as a driver of a limousine or sedan. The form may provide for additional information relating to the applicant's past or present medical history or condition.
1207.5 Each applicant shall have central visual acuity of at least 20/40 in one eye, either unassisted or assisted by glasses or contact lens, and shall have hearing of at least 10/20 in one ear.
1207.6 An applicant shall not be considered for a license if, at the time the application is filed, the applicant is suffering from a contagious disease, epilepsy, vertigo, fainting spells, blackouts, attacks of dizziness, or another medical condition that in the opinion of the Office may render the applicant unsafe or unsatisfactory as a driver of a limousine or sedan.
SOURCE: Final Rulemaking published at 41 DCR 2812, 2819 (May 20, 1994).