This document summarizes a federal contract opportunity notice issued by the General Services Administration. The GSA is issuing Solicitation Number QMAD-CY-090001-B, Refresh #18 for Multiple Award Schedule 599 Travel Services Solutions, effective April 26, 2017. This replaces former Solicitation Number QMAD-CY-090001-B Refresh 17. Resultant contracts will be indefinite delivery, indefinite quantity contracts under GSA's Multiple Award Schedule program with no need for current contract holders to reapply. The purpose is to provide all government agencies a vehicle to obtain quality travel services from qualified contractors. Products and services covered include travel consultation, travel management center services, lodging services and management, specialized conference facilities, air charter services, and new related products and services. The contract period following award will be five years with three five-year option periods possible.