The objective of this RFP is to obtain for PHMSA a cost-effective and efficient method of procuring services to meet its administrative services support needs. The Contractor must provide PHMSA-wide (Headquarters and Regions) administrative support services on a long-term basis and short-term basis. Long-term requirements are those which are expected to have a period of performance of one year or more. Short-term requirements are those which are expected to have a period of performance of less than one year.