This is a sole-source solicitation for a one-year, fixed-price service and support plan for specific Illumina DNA sequencers at the NICHD. The contract is intended for Illumina Inc. of San Diego, CA, as the only authorized provider for these machines. The required Silver Support Plan covers the period from March 11, 2026, to March 10, 2027. The government justifies the sole-source approach by stating that only Illumina can provide the necessary specialized parts, proprietary software access, and factory-trained engineers to maintain these mission-critical instruments. While open to quotations from any responsible source, any offeror must provide signed documentation from Illumina confirming authorization to provide all services and products outlined.