p>Before starting work, DAVA personnel working with MTFs shall provide proof of immunization from the following diseases according to CDC guidelines: Hepatitis B, measles, mumps, rubella, varicella, and influenza, and proof of a negative TB skin test (completed within the past 12 months (if positive, proof of negative chest X-ray within the past 12 months) prior to start of work). IVA’AL Solutions, LLC provides support to the Air Force (AF) Family Advocacy Program (FAP) and is responsible for staffing qualified Licensed Clinical Social Workers, Licensed Registered Nurses, Certified Victim Advocates, and Program Assistants at U.S. AF Military Treatment Facilities (MTFs) across the country.