The National Park Service, Southeast Region awarded a purchase order to System 5 Electronics, Inc. for fire protection maintenance, monitoring, inspection, and testing services at Martin Luther King Jr. National Historical Park. The order ceiling is $16,073.00 under firm fixed price terms. This modification (No. 4) de-obligates the remaining balance for maintenance, monitoring, and service calls. Work is performed in Atlanta, Georgia. The original award date was January 1, 2021, with ultimate completion targeted for April 15, 2023.