MIL-B-62152 Bus, Motor: Ambulance, Intercity, 40 Passenger, 6X2 Or 6X4This specification covers a six-wheel, four- or two-rear wheel drive, diesel engine driven, intercity type motor bus ambulance, having a seating capacity for 40 adult passengers for long distance transportation. The bus has features to allow ready conversion to accommodate 18 litter patients, the driver, and four seated attendants. Except for customized ambulance conversion features, vehicles procured under this specification are commercial items. Frame and all chassis components, heating and air conditioning equipment shall be commercially available items. The vehicle shall be warranted as specified in the procurement documents.