This pre-solicitation notice describes a sole source contract to Rockwell Collins for various CAD/PAD items and is not set aside for small businesses. The estimated award date is approximately January 2027. Interested firms, especially small businesses, may pursue subcontracting opportunities with Rockwell Collins. All responsible sources may submit a capability statement, proposal, or quotation, though contractors not already qualified must provide a qualification package per FAR 52.209-1. Award will not be delayed to allow submission of qualification evidence.