ACE travel coordinators have negotiated discounted ACE rates with designated vendors on rental cars, hotels and airfare between certain heavily traveled destinations, where applicable. Travelers are required to use these preferred vendors unless business requirements dictate otherwise. Please refrain from contacting airlines, hotels and car rental companies directly to make your own reservations. This is important for the company in providing comprehensive information for supplier negotiations and managing our global travel budget. When approved vendors are not used, current and future corporate contracts are jeopardized.