diff --git a/.gitmodules b/.gitmodules
index 779a7faa..80b3fdb6 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -49,10 +49,6 @@
   path = sorc/icepack
   url = https://github.com/JCSDA-internal/Icepack.git
   branch = feature/ecbuild-new
-[submodule "sorc/mom6"]
-  path = sorc/mom6
-  url = https://github.com/jcsda-internal/MOM6.git
-  branch = main-ecbuild
 [submodule "sorc/soca"]
   path = sorc/soca
   url = https://github.com/jcsda-internal/soca.git
@@ -73,10 +69,6 @@
   path = sorc/crtm
   url = https://github.com/jcsda/crtm.git
   branch = release/crtm_jedi_v2.4.1
-[submodule "sorc/fms"]
-  path = sorc/fms
-  url = https://github.com/jcsda/fms.git
-  branch = release-stable
 [submodule "sorc/jcb"]
   path = sorc/jcb
   url = https://github.com/noaa-emc/jcb.git
diff --git a/bundle/CMakeLists.txt b/bundle/CMakeLists.txt
index ab6f7c7e..7481aa95 100644
--- a/bundle/CMakeLists.txt
+++ b/bundle/CMakeLists.txt
@@ -97,8 +97,7 @@ if(BUILD_GDASBUNDLE)
   option(ENABLE_UFO_DATA "Obtain ufo test data from ufo-data repository (vs tarball)" ON)
   ecbuild_bundle( PROJECT ufo SOURCE "../sorc/ufo" )
 
-# FMS and FV3 dynamical core
-  #ecbuild_bundle( PROJECT fms SOURCE "../sorc/fms" )
+# FV3 dynamical core
   include(fv3-interface.cmake)
   ecbuild_bundle( PROJECT fv3 SOURCE "../sorc/fv3" )
 
@@ -114,7 +113,6 @@ if(BUILD_GDASBUNDLE)
   if ( BUILD_ICEPACK )
     ecbuild_bundle( PROJECT icepack SOURCE "../sorc/icepack" )
   endif()
-  #ecbuild_bundle( PROJECT mom6 SOURCE "../sorc/mom6" )
   ecbuild_bundle( PROJECT soca SOURCE "../sorc/soca" )
 
   # Build JEDI/DA or other peripherals
diff --git a/sorc/fms b/sorc/fms
deleted file mode 160000
index 1f739141..00000000
--- a/sorc/fms
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 1f739141ef8b000a0bd75ae8bebfadea340299ba
diff --git a/sorc/mom6 b/sorc/mom6
deleted file mode 160000
index 51ec489a..00000000
--- a/sorc/mom6
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 51ec489ad7d8a86762bef4c46eabd9af5fc41fa4