diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9f166bf3..ac0aaa5a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,10 @@ See also [JsonSchemaChanges.md](JsonSchemaChanges.md) for a list of changes in t
 
 - Fixed a bug that requires rebuilding the icd database. This is done automatically when you run icdwebserver,
   or you can run `icd-git --ingest` to do it manually. 
+  
+- Added the following subsystems back to the allowed list for the 2.0 model file schema: ENC, STR, M2S, M3S, TINS
+  and created the related repos under https://github.com/tmt-icd/.
+
 
 ## [ICD v1.2.1] - 2020-06-01
 
diff --git a/icd-db/src/main/resources/2.0/subsystem.conf b/icd-db/src/main/resources/2.0/subsystem.conf
index af8a767d..42ee34d2 100644
--- a/icd-db/src/main/resources/2.0/subsystem.conf
+++ b/icd-db/src/main/resources/2.0/subsystem.conf
@@ -1,9 +1,14 @@
 // Enumeration including all available subsystems
 
 enum = [
-  SUM, // (SUM, Components: FMCS, HBS)
+  ENC, // Enclosure
+  SUM, // Summit Facilities
+  STR, // Structure
+  M2S, // M2 System
+  M3S, // M3 System
   CLN, // Mirror Cleaning System
-  TCS, // Telescope Control System (Components K, CM, MCS, SHS, ENC, M2, M3, PFC, GMS...)
+  TINS, // Test Instruments
+  TCS, // Telescope Control System
   M1CS, // M1 Control System
   APS, // Alignment and Phasing System
   OSS, // Observatory Safety System
diff --git a/icd-git/src/main/scala/csw/services/icd/github/IcdGitManager.scala b/icd-git/src/main/scala/csw/services/icd/github/IcdGitManager.scala
index 90b7cd67..91e2cea7 100644
--- a/icd-git/src/main/scala/csw/services/icd/github/IcdGitManager.scala
+++ b/icd-git/src/main/scala/csw/services/icd/github/IcdGitManager.scala
@@ -282,8 +282,13 @@ object IcdGitManager {
    * @param updateTag if true, update the version tag on GitHub
    * @return the entry for the removed API, if found
    */
-  def unpublish(sv: SubsystemAndVersion, user: String, password: String, comment: String,
-                updateTag: Boolean = true): Option[ApiVersionInfo] = {
+  def unpublish(
+      sv: SubsystemAndVersion,
+      user: String,
+      password: String,
+      comment: String,
+      updateTag: Boolean = true
+  ): Option[ApiVersionInfo] = {
     import ApiVersions._
 
     def unpublishRelatedIcds(gitWorkDir: File): Unit = {
@@ -351,8 +356,14 @@ object IcdGitManager {
    * @param updateTag    if true, update the version tag on GitHub
    * @return an object describing the published API
    */
-  def publish(subsystem: String, majorVersion: Boolean, user: String, password: String, comment: String,
-              updateTag: Boolean = true): ApiVersionInfo = {
+  def publish(
+      subsystem: String,
+      majorVersion: Boolean,
+      user: String,
+      password: String,
+      comment: String,
+      updateTag: Boolean = true
+  ): ApiVersionInfo = {
     // Checkout the icds repo in a temp dir
     val gitWorkDir = Files.createTempDirectory("icds").toFile
     try {
@@ -740,27 +751,25 @@ object IcdGitManager {
   // This is used to speed up the check if a repo is empty. If the commit id changes,
   // then we assume somebody added something.
   private val emptyRepos = Map(
-    "CIS"  -> "7f42a42871015c5e5bdaea64f49bd26619217314",
-    "CLN"  -> "29eefda09df5b1415ca69724ee131aafadcb2f87",
-    "CRYO" -> "73714a1bee9fc38c4a14ab4e9e5d3bfa731c7136",
-    "CSW"  -> "0be40700817fb3ffd4393aba58207a696ae16321",
-    "DMS"  -> "f9b257eded51a2daf1b13b28ef16a781f21882c7",
-    "DPS"  -> "132c3aacfb1f13bed0751bf4ead3ae14827b4092",
-//    "FMCS"   -> "cc40c0589cbcfe299ed2166de85f2d6a83743643",
-//    "GMS"    -> "ed5023527d099a042bbddd1c85d9ecdec9bf4942",
+    "CIS"    -> "7f42a42871015c5e5bdaea64f49bd26619217314",
+    "CLN"    -> "29eefda09df5b1415ca69724ee131aafadcb2f87",
+    "CRYO"   -> "73714a1bee9fc38c4a14ab4e9e5d3bfa731c7136",
+    "CSW"    -> "0be40700817fb3ffd4393aba58207a696ae16321",
+    "DMS"    -> "f9b257eded51a2daf1b13b28ef16a781f21882c7",
+    "DPS"    -> "132c3aacfb1f13bed0751bf4ead3ae14827b4092",
+    "ENC"    -> "c950920d4c39fcf27d59e4c8d7566d7d2a4fb72f",
     "LGSF"   -> "b01dfa73a1f3e5c677f819aa855e8158e12c1bc5",
+    "M2S"    -> "cfaaacc833812f210354db9d38befa80bdf00e4b",
+    "M3S"    -> "c1d43e5289dd9cdbac379daad5ffb641db6ee29f",
     "MODHIS" -> "6139728cc2e1c1ba64724c5cff40c16452ee8da9",
     "NSCU"   -> "5f26e4dd18bee60f0c631e625d4b02558dccd3e1",
-//    "PFCS"   -> "a01b55689f5d36436c7018acfa0888f598bf6a7d",
-//    "PSFR"   -> "21413dae346a90dba6e3dfb1fca53dab96d46d31",
-    "REFR" -> "e57687a18f61875deea19cb1ba83ceca3d1fc9a5",
-//    "RPG"    -> "a62a7d5ee0354d5402124bfc56a88c46f9845979",
-//    "RTC"    -> "45a2a564c0e57fe628e10214aa9f0924bfc4e8fe",
-    "SCMS" -> "13916c6a742b3f37f8c6a131a1ff9291edf3f781",
-    "SOSS" -> "48684f6dc2a54d290c69edbfdd4909528a2b27a7",
-    "SUM"  -> "2864dbc7ec2dbdc5762405d57683c1c97a31cd12",
-//    "TINS"   -> "4acb42a07e098f5acd3998a638ca11184b6e3110",
-    "WFOS" -> "330391bb97a21ff5c888594517019cb65f5c34fc"
+    "REFR"   -> "e57687a18f61875deea19cb1ba83ceca3d1fc9a5",
+    "SCMS"   -> "13916c6a742b3f37f8c6a131a1ff9291edf3f781",
+    "SOSS"   -> "48684f6dc2a54d290c69edbfdd4909528a2b27a7",
+    "STR"    -> "035688c16bbd991d08a22137b6804c78c24f75ba",
+    "SUM"    -> "2864dbc7ec2dbdc5762405d57683c1c97a31cd12",
+    "TINS"   -> "ba5ec70cafa2d7a3704b537bc38b3156909c6ff2",
+    "WFOS"   -> "330391bb97a21ff5c888594517019cb65f5c34fc"
   )
 
   case class SubsystemGitInfo(commitId: String, isEmpty: Boolean)