This is an Expression of Interest for lighting controls upgrade services at the TAN-675 facility at the Idaho National Laboratory in Idaho. The work involves removing old systems and installing new, integrated lighting controls. The Davis-Bacon Act and a Site Stabilization Agreement apply to construction work performed within the laboratory's 890-square mile site boundary. The deadline for submitting an Expression of Interest is January 29, 2027. Selected vendors may be invited to a subsequent Request for Proposal process.