This is a modification to extend an existing contract for software, database administration, and support services for 75 days, from March 25, 2026, to June 7, 2026. The purpose is to prevent a lapse in service while a new competitive contract is awarded. The work is for the NLM LHNCBC. The acquisition is restricted to one source under the GSA Multiple-Award Schedule program, citing that only one contractor is capable of providing these unique or highly specialized services.