***Amendment 01: The purpose of this amendment is to post a clarification concerning this opportunity. This procurment is for SourceAmercia only due to statutorily mandated source per FAA procurement policy found in AMS 3.8.4.2 and Procurement Guidance T3.8.4. This is not a full and open or set aside for small business opportunity. This posted contract opportunity is meant to be informational purposes only. *******************************************************************************************Janitorial services for the Mike Monroney Aeronautical Center (MMAC) located in Oklahoma City, OK. The janitorial services contract will provide, maintain, and manage all janitorial supplies, tools, equipment and labor necessary to service approximately 1.8 million square foot of space in 91 occupied and unoccupied buildings, tunnels and overhead walkways at the MMAC. The proposed contract is a follow-on to the existing janitorial services contract which expires June 30th 2022.Janitorial services at the MMAC have been provided through the SourceAmerica Program (formerly AbilityOne Program). SourceAmerica is a statutorily mandated source per FAA procurement policy found in AMS 3.8.4.2 and Procurement Guidance