diff --git a/MdePkg/Include/Guid/ConformanceProfiles.h b/MdePkg/Include/Guid/ConformanceProfiles.h
index 5505011231..bf89ab61dd 100644
--- a/MdePkg/Include/Guid/ConformanceProfiles.h
+++ b/MdePkg/Include/Guid/ConformanceProfiles.h
@@ -45,12 +45,22 @@ typedef struct {
 #define EFI_CONFORMANCE_PROFILES_TABLE_VERSION  0x1
 
 //
-// GUID defined in spec.
+// GUID defined in UEFI 2.10
 //
 #define EFI_CONFORMANCE_PROFILES_UEFI_SPEC_GUID \
     { 0x523c91af, 0xa195, 0x4382, \
     { 0x81, 0x8d, 0x29, 0x5f, 0xe4, 0x00, 0x64, 0x65 }}
 
+//
+// GUID defined in EBBR
+//
+#define EFI_CONFORMANCE_PROFILE_EBBR_2_1_GUID \
+    { 0xcce33c35, 0x74ac, 0x4087, \
+    { 0xbc, 0xe7, 0x8b, 0x29, 0xb0, 0x2e, 0xeb, 0x27 }}
+#define EFI_CONFORMANCE_PROFILE_EBBR_2_2_GUID \
+    { 0x9073eed4, 0xe50d, 0x11ee, \
+    { 0xb8, 0xb0, 0x8b, 0x68, 0xda, 0x62, 0xfc, 0x80 }}
+
 extern EFI_GUID  gEfiConfProfilesTableGuid;
 extern EFI_GUID  gEfiConfProfilesUefiSpecGuid;
 
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index 3a9a0fec24..5dbe5a9f72 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -755,6 +755,12 @@
   gEfiConfProfilesTableGuid        = { 0x36122546, 0xf7e7, 0x4c8f, { 0xbd, 0x9b, 0xeb, 0x85, 0x25, 0xb5, 0x0c, 0x0b }}
   gEfiConfProfilesUefiSpecGuid     = { 0x523c91af, 0xa195, 0x4382, { 0x81, 0x8d, 0x29, 0x5f, 0xe4, 0x00, 0x64, 0x65 }}
 
+  # GUIDs defined in EBBR
+  #
+  ## Include/Guid/ConformanceProfiles.h
+  gEfiConfProfilesEbbrSpec21Guid     = { 0xcce33c35, 0x74ac, 0x4087, { 0xbc, 0xe7, 0x8b, 0x29, 0xb0, 0x2e, 0xeb, 0x27 }}
+  gEfiConfProfilesEbbrSpec22Guid     = { 0x9073eed4, 0xe50d, 0x11ee, { 0xb8, 0xb0, 0x8b, 0x68, 0xda, 0x62, 0xfc, 0x80 }}
+
   #
   # GUID defined in PI1.0
   #