A road leads to the entrance gate of the Nevada National Security Site, where vehicles stop for a security checkpoint.

MSTS Contract Modifications

A road leads to the entrance gate of the Nevada National Security Site, where vehicles stop for a security checkpoint.

Mission Support and Test Services (MSTS) is the management and operating contractor for the NNSS on behalf of the NNSA Nevada Field Office. The contract valued at approximately $5,000,000,000 was awarded on May 12, 2017. The contract period of performance is December 1, 2017, through November 30, 2027.

Name:Effective Date:Description:
DE-NA0003624_Mod_02462/11/2025Contract Modification
DE-NA0003624_Mod_02451/30/2025Obligation of Funds
DE-NA0003624_Mod_02441/30/2025Obligation of Funds
DE-NA0003624_Mod_02432/12/2025Contract Modification
DE-NA0003624_Mod_024212/18/2024Obligation of Funds
DE-NA0003624_Mod_024112/18/2024Obligation of Funds
DE-NA0003624_Mod_02402/7/2025Contract Modification
DE-NA0003624_Mod_023911/26/2024Obligation of Funds
DE-NA0003624_Mod_023811/26/2024Obligation of Funds
DE-NA0003624_Mod_023710/29/2024Obligation of Funds
DE-NA0003624_Mod_023610/30/2024Contract Modification
DE-NA0003624_Mod_023510/3/2024Contract Modification
DE-NA0003624_Mod_02349/30/2024Contract Modification
DE-NA0003624_Mod_02339/26/2024Obligation of Funds
DE-NA0003624_Mod_02329/26/2024Obligation of Funds
DE-NA0003624_Mod_023111/22/2024Contract Modification
DE-NA0003624_Mod_02308/29/2024Obligation of Funds
DE-NA0003624_Mod_02298/29/2024Obligation of Funds
DE-NA0003624_Mod_02288/29/2024Obligation of Funds
DE-NA0003624_Mod_02278/22/2024Contract Modification
DE-NA0003624_Mod_02267/30/2024Contract Modification
DE-NA0003624_Mod_02257/30/2024Contract Modification
DE-NA0003624_Mod_02247/24/2024Contract Modification
DE-NA0003624_Mod_02236/27/2024Obligation of Funds
DE-NA0003624_Mod_02226/26/2024Obligation of Funds
DE-NA0003624_Mod_02215/30/2024Obligation of Funds
DE-NA0003624_Mod_02205/30/2024Obligation of Funds
DE-NA0003624_Mod_02196/3/2024Contract Modification
DE-NA0003624_Mod_02186/6/2024Contract Modification
DE-NA0003624_Mod_02175/29/2024Contract Modification
DE-NA0003624_Mod_02165/14/2024Contract Modification
DE-NA0003624_Mod_02154/29/2024Obligation of Funds
DE-NA0003624_Mod_02144/29/2024Obligation of Funds
DE-NA0003624_Mod_02133/28/2024Obligation of Funds
DE-NA0003624_Mod_02123/28/2024Obligation of Funds
DE-NA0003624_Mod_02112/28/2024Obligation of Funds
DE-NA0003624_Mod_02102/28/2024Obligation of Funds
DE-NA0003624_Mod_02091/29/2024Obligation of Funds
DE-NA0003624_Mod_02081/29/2024Obligation of Funds
DE-NA0003624_Mod_02071/18/2024Obligation of Funds
DE-NA0003624_Mod_02061/17/2024Obligation of Funds
DE-NA0003624_Mod_020512/27/2023Obligation of Funds
DE-NA0003624_Mod_020412/27/2023Obligation of Funds
DE-NA0003624_Mod_020312/23/2023Contract Modification
DE-NA0003624_Mod_020211/16/2023Obligation of Funds
DE-NA0003624_Mod_020111/15/2023Obligation of Funds
DE-NA0003624_Mod_020012/8/2023Contract Modification
DE-NA0003624_Mod_019910/27/2023Obligation of Funds
DE-NA0003624_Mod_019812/7/2023Contract Modification
DE-NA0003624_MOD_01979/27/2023Obligation of Funds
DE-NA0003624_MOD_01969/27/2023Obligation of Funds
DE-NA0003624_Mod_019510/26/2023Contract Modification
DE-NA0003624_MOD_01949/11/2023Contract Modification
DE-NA0003624_MOD_01928/28/2023Obligation of Funds
DE-NA0003624_MOD_01918/28/2023Obligation of Funds
DE-NA0003624_MOD_01908/15/2023Contract Modification
DE-NA0003624_MOD_01897/27/2023Obligation of Funds
DE-NA0003624_MOD_01887/27/2023Obligation of Funds
DE-NA0003624_MOD_01866/28/2023Obligation of Funds
DE-NA0003624_MOD_01856/28/2023Obligation of Funds
DE-NA0003624_MOD_01847/12/2023Contract Modification
DE-NA0003624_MOD_01835/31/2023Obligation of Funds
DE-NA0003624_MOD_01825/30/2023Obligation of Funds
DE-NA0003624_MOD_018111/21/2023Contract Modification
DE-NA0003624_MOD_01805/15/2023Contract Modification
DE-NA0003624_MOD_01794/27/2023Obligation of Funds
DE-NA0003624_MOD_01784/27/2023Obligation of Funds
DE-NA0003624_MOD_01773/30/2023Obligation of Funds
DE-NA0003624_MOD_01763/30/2023Obligation of Funds
DE-NA0003624_MOD_01753/7/2023Contract Modification
DE-NA0003624_MOD_01742/27/2023Obligation of Funds
DE-NA0003624_MOD_01732/27/2023Obligation of Funds
DE-NA0003624_MOD_01721/30/2023Obligation of Funds
DE-NA0003624_MOD_01711/30/2023Obligation of Funds
DE-NA0003624_MOD_017012/8/2023Reserve Modification
with No Action
DE-NA0003624_MOD_01691/10/2023Obligation of Funds
DE-NA0003624_MOD_01681/4/2023Contract Modification
DE-NA0003624_MOD_016712/21/2022Contract Modification
DE-NA0003624_MOD_016612/22/2022Obligation of Funds
DE-NA0003624_MOD_016512/22/2022Obligation of Funds
DE-NA0003624_MOD_016412/21/2022Contract Modification
DE-NA0003624_MOD_016311/29/2022Obligation of Funds
DE-NA0003624_MOD_016211/29/2022Obligation of Funds
DE-NA0003624_MOD_016112/2/2022Contract Modification
DE-NA0003624_MOD_01604/20/2023Contract Modification
DE-NA0003624_MOD_015911/15/2022Contract Modification
DE-NA0003624_MOD_015810/27/2022Obligation of Funds
DE-NA0003624_MOD_01579/29/2022Obligation of Funds
DE-NA0003624_MOD_01569/29/2022Obligation of Funds
DE-NA0003624_MOD_01559/22/2022Contract Modification
DE-NA0003624_MOD_01548/31/2022Obligation of Funds
DE-NA0003624_MOD_01538/30/2022Obligation of Funds
DE-NA0003624_MOD_01528/17/2022Contract Modification
DE-NA0003624_MOD_01518/31/2022Contract Modification
DE-NA0003624_MOD_01507/29/2022Obligation of Funds
DE-NA0003624_MOD_01497/29/2022Obligation of Funds
DE-NA0003624_MOD_01486/29/2022Obligation of Funds
DE-NA0003624_MOD_01476/28/2022Obligation of Funds
DE-NA0003624_MOD_01465/27/2022Obligation of Funds
DE-NA0003624_MOD_01455/26/2022Obligation of Funds
DE-NA0003624_MOD_01446/16/2022Contract Modification
DE-NA0003624_MOD_01436/7/2022Contract Modification
DE-NA0003624_MOD_014210/4/2022Contract Modification
DE-NA0003624_MOD_01414/28/2022Obligation of Funds
DE-NA0003624_MOD_01405/6/2022Contract Modification
DE-NA0003624_MOD_01394/28/2022Obligation of Funds
DE-NA0003624_MOD_01373/30/2022Obligation of Funds
DE-NA0003624_MOD_01363/28/2022Contract Modification
DE-NA0003624_MOD_01353/29/2022Obligation of Funds
DE-NA0003624_MOD_01343/11/2022Obligation of Funds
DE-NA0003624_MOD_01333/11/2022Obligation of Funds
DE-NA0003624_MOD_013212/8/2023Reserve Modification
with No Action
DE-NA0003624_MOD_01302/18/2022Obligation of Funds
DE-NA0003624_MOD_01292/18/2022Obligation of Funds
DE-NA0003624_MOD_01281/27/2022Obligation of Funds
DE-NA0003624_MOD_01272/2/2022Contract Modification
DE-NA0003624_MOD_01261/15/2022Obligation of Funds
DE-NA0003624_MOD_01259/8/2022Contract Modification
DE-NA0003624_MOD_012412/28/2021Obligation of Funds
DE-NA0003624_MOD_012312/21/2021Contract Modification
DE-NA0003624_MOD_012211/26/2021Obligation of Funds
DE-NA0003624_MOD_01211/20/2022Contract Modification
DE-NA0003624_MOD_012012/23/2021Contract Modification
DE-NA0003624_MOD_011912/8/2023Reserve Modification
with No Action
DE-NA0003624_MOD_011810/28/2021Obligation of Funds
DE-NA0003624_MOD_011710/29/2021Contract Modification
DE-NA0003624_MOD_011610/7/2021Contract Modification
DE-NA0003624_MOD_01159/29/2021Obligation of Funds
DE-NA0003624_MOD_01149/30/2021Contract Modification
DE-NA0003624_MOD_01138/31/2021Obligation of Funds
DE-NA0003624_MOD_01128/30/2021Contract Modification
DE-NA0003624_MOD_01117/30/2021Obligation of Funds
DE-NA0003624_MOD_01107/14/2021Contract Modification
DE-NA0003624_MOD_01099/16/2021Contract Modification
DE-NA0003624_MOD_01087/21/2021Contract Modification
DE-NA0003624_MOD_01076/29/2021Obligation of Funds
DE-NA0003624_MOD_01066/30/2021Contract Modification
DE-NA0003624_MOD_01055/27/2021Obligation of Funds
DE-NA0003624_MOD_01046/4/2021Contract Modification
DE-NA0003624_MOD_01034/30/2021Obligation of Funds
DE-NA0003624_MOD_01024/14/2021Contract Modification
DE-NA0003624_MOD_01013/30/2021Obligation of Funds
DE-NA0003624_MOD_01003/16/2021Contract Modification
DE-NA0003624_MOD_00994/8/2021Contract Modification
DE-NA0003624_MOD_00982/25/2021Obligation of Funds
DE-NA0003624_MOD_00971/28/2021Obligation of Funds
DE-NA0003624_MOD_009612/30/2020Contract Modification
DE-NA0003624_MOD_009512/23/2020Obligation of Funds
DE-NA0003624_MOD_009412/22/2020Contract Modification
DE-NA0003624_MOD_009312/18/2020Obligation of Funds
DE-NA0003624_MOD_009212/17/2020Contract Modification
DE-NA0003624_MOD_009112/14/2020Contract Modification
DE-NA0003624_MOD_009011/25/2020Obligation of Funds
DE-NA0003624_MOD_00893/30/2021Contract Modification
DE-NA0003624_MOD_008811/4/2020Contract Modification
DE-NA0003624_MOD_008710/30/2020Obligation of Funds
DE-NA0003624_MOD_008610/7/2020Contract Modification
DE-NA0003624_MOD_008510/13/2020Contract Modification
DE-NA0003624_MOD_00849/30/2020Contract Modification
DE-NA0003624_MOD_00839/29/2020Obligation of Funds
DE-NA0003624_MOD_00829/3/2020Contract Modification
DE-NA0003624_MOD_00818/31/2020Obligation of Funds
DE-NA0003624_MOD_00808/20/2020Contract Modification
DE-NA0003624_MOD_00797/30/2020Obligation of Funds
DE-NA0003624_MOD_00786/26/2020Obligation of Funds
DE-NA0003624_MOD_00774/14/2021Contract Modification
DE-NA0003624_MOD_00767/30/2020Contract Modification
DE-NA0003624_MOD_00757/29/2020Contract Modification
DE-NA0003624_MOD_00745/28/2020Obligation of Funds
DE-NA0003624_MOD_00734/30/2020Obligation of Funds
DE-NA0003624_MOD_00724/16/2020Contract Modification
DE-NA0003624_MOD_00714/13/2020Contract Modification
DE-NA0003624_MOD_00703/31/2020Obligation of Funds
DE-NA0003624_MOD_00694/1/2020Contract Modification
DE-NA0003624_MOD_00682/26/2020Obligation of Funds
DE-NA0003624_MOD_00671/30/2020
Obligation of Funds
DE-NA0003624_MOD_00662/4/2020Contract Modification
DE-NA0003624_MOD_006512/20/2019Obligation of Funds
DE-NA0003624_MOD_00641/16/2020Contract Modification
DE-NA0003624_MOD_006311/25/2019Obligation of Funds
DE-NA0003624_MOD_00622/10/2020Contract Modification
DE-NA0003624_MOD_006110/29/2019Obligation of Funds
DE-NA0003624_MOD_00602/10/2020Contract Modification
DE-NA0003624_MOD_005910/15/2019Contract Modification
DE-NA0003624_MOD_00589/26/2019Obligation of Funds
DE-NA0003624_MOD_00578/28/2019Obligation of Funds
DE-NA0003624_MOD_00568/29/2019Contract Modification
DE-NA0003624_MOD_00558/1/2019Obligation of Funds
DE-NA0003624_MOD_00547/30/2019Obligation of Funds
DE-NA0003624_MOD_00536/27/2019Obligation of Funds
DE-NA0003624_MOD_00527/2/2019Contract Modification
DE-NA0003624_MOD_00515/28/2019Obligation of Funds
DE-NA0003624_MOD_00505/16/2019Contract Modification
DE-NA0003624_MOD_00494/29/2019Obligation of Funds
DE-NA0003624_MOD_00484/19/2019Obligation of Funds
DE-NA0003624_MOD_00473/28/2019Obligation of Funds
DE-NA0003624_MOD_00462/27/2019Obligation of Funds
DE-NA0003624_MOD_00451/31/2019Obligation of Funds
DE-NA0003624_MOD_00445/10/2019Contract Modification
DE-NA0003624_MOD_00431/30/2019Obligation of Funds
DE-NA0003624_MOD_00421/14/2019Contract Modification
DE-NA0003624_MOD_004112/27/2018Obligation of Funds
DE-NA0003624_MOD_004012/27/2018Obligation of Funds
DE-NA0003624_MOD_003911/28/2018Obligation of Funds
DE-NA0003624_MOD_003811/28/2018Obligation of Funds
DE-NA0003624_MOD_003711/29/2018Contract Modification
DE-NA0003624_MOD_003611/7/2018Contract Modification
DE-NA0003624_MOD_003510/30/2018Obligation of Funds
DE-NA0003624_MOD_003410/29/2018Obligation of Funds
DE-NA0003624_MOD_003311/5/2018Contract Modification
DE-NA0003624_MOD_00329/27/2018Obligation of Funds
DE-NA0003624_MOD_00319/27/2018Obligation of Funds
DE-NA0003624_MOD_00309/26/2018Contract Modification
DE-NA0003624_MOD_00298/29/2018Obligation of Funds
DE-NA0003624_MOD_00288/27/2018Obligation of Funds
DE-NA0003624_MOD_00278/20/2018Contract Modification
DE-NA0003624_MOD_00267/31/2018Obligation of Funds
DE-NA0003624_MOD_00257/30/2018Obligation of Funds
DE-NA0003624_MOD_00246/28/2018Obligation of Funds
DE-NA0003624_MOD_00236/27/2018Obligation of Funds
DE-NA0003624_MOD_00226/18/2018Contract Modification
DE-NA0003624_MOD_00215/30/2018Obligation of Funds
DE-NA0003624_MOD_00205/30/2018Obligation of Funds
DE-NA0003624_MOD_00184/27/2018Obligation of Funds
DE-NA0003624_MOD_00174/27/2018Obligation of Funds
DE-NA0003624_MOD_00163/29/2018Obligation of Funds
DE-NA0003624_MOD_00153/26/2018Obligation of Funds
DE-NA0003624_MOD_00143/14/2018Contract Modification
DE-NA0003624_MOD_00132/28/2018Obligation of Funds
DE-NA0003624_MOD_00122/27/2018Obligation of Funds
DE-NA0003624_MOD_00111/31/2018Obligation of Funds
DE-NA0003624_MOD_00101/30/2018Obligation of Funds
DE-NA0003624_MOD_00094/3/2018Contract Modification
DE-NA0003624_MOD_000811/30/2017Contract Modification
DE-NA0003624_MOD_000711/15/2017Contract Modification
DE-NA0003624_MOD_000612/27/2017Obligation of Funds
DE-NA0003624_MOD_000512/26/2017Obligation of Funds
DE-NA0003624_MOD_00049/29/2017Limitation of Funds
DE-NA0003624_MOD_00039/28/2017Limitation of Funds
DE-NA0003624_MOD_00028/31/2017Limitation of Funds
DE-NA0003624_MOD_00016/7/2017Contract Modification

MSTS Contract Information