NASA/Goddard Space Flight Center, Code 211, Greenbelt, MD 20771

A -- STRATOSPHERIC GENERAL CIRCULATION WITH CHEMISTRY MODELING (SGCCM) AND ATMOSPHERIC CHEMISTRY AND DYNAMICS (ACD) SOL RFP5-60974-905 DUE 020199 POC Deanna E. Herschell, Contract Specialist, Phone (301) 286-6303, Fax (301) 286-1654, Email deanna.herschell@gsfc.nasa.gov -- Patrick D. Logan, Contracting Officer, Phone (301)286-7244, Fax (301)286-1654, Email Patrick.D.Logan.1@gsfc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/GSFC/date.html#RFP5-60974-905. E-MAIL: Deanna E. Herschell, deanna.herschell@gsfc.nasa.gov. NASA/GSFC plans to issue a Request for Proposal (RFP)5-60974-905 on a sole source basis to Space Applications Corporation, Vienna, VA, to extend support currently provided under contract NAS5-32585 for an additional 6 months beyond the current end date of the contract (February 20, 1999). This extension is required to continue work currently under way while the government's technical requirements are being consolidated and competed. Under the consolidation competition, these requirements will be procured using full and open competition. Under contract NAS5-32585, the contractor provides support to the Stratospheric General Circulation with Chemistry Modeling (SGCCM) effort and to the Atmospheric Chemistry and Dynamics (ACD) group within the Laboratory for Atmospheres. This support includes, but is not limited to, developing, operating, modifying, and updating computer codes for the SGCCM and ACD models and data analysis. NASA/GSFC intends to purchase the items from Space Applications Corporation. The current contractor has unique specialized knowledge of the work to be performed that could not be duplicated by new contract personnel in enough time to be proficient in the tasks required. The authority is 10 U.S.C. 2304(c)(1), Only One Responsible Source. Contractors who believe they can provide these services without any harmful impact to the program schedules supported by this work, should contact the persons noted below. Interested firms must submit a response by 4p.m. EST, February 1, 1999. All responsible sources may submit a proposal which shall be considered by the agency. The Government does not intend to acquire a commercial item using FAR Part 12. See Note 26. An Ombudsman has been appointed, See Internet Note "B". See Note 22. Any referenced notes can be viewed at the following URL: http://genesis.gsfc.nasa.gov/nasanote.html. Posted 01/11/99 (D-SN287011). (0011)

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