Tetra Tech EC Inc., Huntsville, Alabama (W912DY-21-D-0085); EA Engineering, Science, and Technology Inc.,* Hunt Valley, Maryland (W912DY-21-D-0131); Weston Solutions Inc., West Chester, Pennsylvania (W912DY-21-D-0086); AECOM Technical Services Inc., Los Angeles, California (W912DY-21-D-0079); Arcadis U.S. Inc., Highlands Ranch, Colorado (W912DY-21-D-0080); Environmental Chemical Corp.,* Burlingame, California (W912DY-21-D-0081); HydroGeoLogic Inc.,* Reston, Virginia (W912DY-21-D-0082); Jacobs USAE JV, Arlington, Virginia (W912DY-21-D-0083); Parsons Government Services Inc., Pasadena, California (W912DY-21-D-0084); GSI MMRP JV LLC,* Honolulu, Hawaii (W912DY-21-D-0132); and APTIM Federal Services LLC, Baton Rouge, Louisiana (W912DY-21-D-0129), will compete for each order of the $1,136,000,000 hybrid (cost-plus-fixed-fee and firm-fixed-price) contract to perform Military Munitions Response Program responses, environmental compliance and remediation services, and other munitions-related services. Bids were solicited via the internet with 13 received. Work locations and funding will be determined with each order, with an estimated completion date of Oct. 14, 2031. U.S. Army Corps of Engineers, Huntsville, Alabama, is the contracting activity.