NASA/Goddard Space Flight Center, Code 219, Greenbelt, MD 20771

A -- THIS PROCUREMENT IS FOR SPECIALIZED SCIENTIFIC SUPPORT SERVICES TO THE DATA ASSIMIATION OFFICE AND THE SOUNDER RESEARCH TEAM. SOL RFP5-12118-254 DUE 020700 POC Dawn M. Fountain, Contract Specialist, Phone (301) 286-3815, Fax (301) 286-1760, Email Dawn.M.Fountain.1@gsfc.nasa.gov -- Michele Rook, Contracting Officer, Phone (301)286-4815, Fax (301)286-1760, Email Michele.C.Rook.1@gsfc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.msfc.nasa.gov/cgi-bin/EPS/bizops.cgi?gr=D&pin=51#RFP5-1211 8-254. E-MAIL: Dawn M. Fountain, Dawn.M.Fountain.1@gsfc.nasa.gov. This is a modification to the Request for Proposal entitled SPECIALIZED SCIENTIFIC SUPPORT SERVICES TO THE DATA ASSIMIATION OFFICE AND THE SOUNDER RESEARCH TEAM, RFP5-12118-254, which was posted on December 22, 1999. You are notified that the following changes are made: the SIC Code is changed to 7371 from 8711. The new SIC Code has a size standard of $18 million. The due date for receipt of offers is not extended. Documents related to this procurement are available over the Internet and are in Microsoft Office Suite (Word 6.0, Excel 5.0, or PowerPoint 4.0) format and will reside on a World Wide Web (WWW) server, which may be accessed using a WWW browser application. The Internet site, or URL, for the NASA/GSFC Business Opportunities home page is http://nais.msfc.nasa.gov/cgi-bin/EPS/bizops.cgi?gr=CL&pin=51 Offerors are responsible for monitoring this site for the release of the solicitation and any amendments. Potential offerors are responsible for downloading their own copy of the solicitation and amendments (if any). Posted 01/04/00 (D-SN413107). (0004)

Loren Data Corp. http://www.ld.com (SYN# 0002 20000106\A-0002.SOL)