This is a sole source contract for annual preventative maintenance, calibration, and certification of seven HISS and three Hydrogen Electrolyzers, with the apparent awardee being FP2Fire, Inc. The work includes visual inspections, leak and pressure testing, filter replacements, and warranty service. The contract is being awarded on a sole source basis because FP2Fire, Inc. is the only vendor capable of maintaining these systems, which they originally designed and installed. Performance locations include upper air stations throughout the National Weather Service Eastern Region and Grand Junction, CO. No budget amount or submission timeline is specified.