If you need to get a Certificate of Disability, use this link: Career Pathways for Individuals with Disabilities, or call DARS at 800-552-5019, or DBVI at 800-622-2155.VDH requires all Health-Care Personnel (HCP) to provide documentation of immunization or evidence of immunity to the following: hepatitis B, measles, mumps, rubella, and varicella; a one-time dose of tetanus, diphtheria, and pertussis (Tdap)vaccine regardless of the interval since the last dose of tetanus-diphtheria (Td) vaccine was administered (Td or Tdap boosters shall be received every 10 years); and the current year’s seasonal influenza vaccination. The Medical Director serves as chief clinician in a health district and is responsible for formal supervision of other Physicians, pharmacy operations, clinical social workers, certified nurse practitioners, and others as designated, by assigning, scheduling, reviewing, and formally evaluating their work.