This is a market research notice for a potential future construction contract to update electrical systems at the United States Penitentiary in Marion, Illinois. The project involves replacing multiple unit substations, panelboards, and associated circuitry at the facility. The estimated project magnitude is over $10 million. The Federal Bureau of Prisons is specifically seeking interested small business electrical contractors with a NAICS code 238210 and a size standard of $19 million. To express interest, contractors must email a completed questionnaire by March 13, 2026, and add their name to the Interested Vendors List on SAM.gov.