 There are also Facilities and Communications Engineering sections.Boston EMS is a unionized department with EMT's and Paramedics represented by the Boston Police Patrolmen's Association, EMS Division; Support Services staff represented by the American Federation of State, County and Municipal Employees (AFSCME); Command Staff represented by SENA, and civilian office/clerical staff represented by SEIU.The Boston EMS ambulance fleet consists of Braun ambulances mounted on International TerraStar, and Ford F-450 Super Duty chassis.