D.C. Code § 1-620.07: Health services.

The Mayor shall establish an employee health services program which shall provide for the following: (1) Treatment of on-the-job injuries and illness requiring emergency treatment; (2) pre-employment and other physical examinations, including fitness-for-duty examinations; (3) a counseling program for “troubled employees”; and (4) preventive programs relating to health. In developing and implementing a health services program consistent with the provisions of this subchapter, maximum use shall be made of existing District government medical and health services facilities, resources and expertise.