diff --git a/spec/authentication-tags-reply.schema.json b/spec/authentication-tags-reply.schema.json
new file mode 100644
index 0000000000000000000000000000000000000000..6f2637e7920f0cb87ff814a4cf95c83d2218a9c7
--- /dev/null
+++ b/spec/authentication-tags-reply.schema.json
@@ -0,0 +1,29 @@
+{
+  "title": "Authentication Tags (Reply)",
+  "description": "Authentication Tags des Meta- und Fachdatensatzes sowie der Anlagen eines Replies",
+  "type": "object",
+  "properties": {
+    "metadata": {
+      "$ref": "#/definitions/authenticationTag"
+    },
+    "data": {
+      "$ref": "#/definitions/authenticationTag"
+    },
+    "attachments": {
+      "$ref": "#/definitions/attachment"
+    }
+  },
+  "additionalProperties": false,
+  "required": [
+    "metadata",
+    "data"
+  ],
+  "definitions": {
+    "authenticationTag": {
+      "$ref": "./parts/authentication-tag.schema.json"
+    },
+    "attachment": {
+      "$ref": "./parts/attachment.schema.json"
+    }
+  }
+}
diff --git a/spec/authentication-tags.schema.json b/spec/authentication-tags-submission.schema.json
similarity index 59%
rename from spec/authentication-tags.schema.json
rename to spec/authentication-tags-submission.schema.json
index ccbdbbdbdccd50ab8747647005ccd629e5151fc3..c3bba92b7e551283ff07d797b789e571a00d0093 100644
--- a/spec/authentication-tags.schema.json
+++ b/spec/authentication-tags-submission.schema.json
@@ -1,6 +1,6 @@
 {
-  "title": "Authentication Tags",
-  "description": "Authentication Tags des Meta- und Fachdatensatzes sowie der Anlagen",
+  "title": "Authentication Tags (Submission)",
+  "description": "Authentication Tags des Meta- und Fachdatensatzes sowie der Anlagen einer Submission.",
   "type": "object",
   "properties": {
     "metadata": {
@@ -10,13 +10,7 @@
       "$ref": "#/definitions/authenticationTag"
     },
     "attachments": {
-      "type": "object",
-      "patternProperties": {
-        "^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$": {
-          "$ref": "#/definitions/authenticationTag"
-        }
-      },
-      "additionalProperties": false
+      "$ref": "#/definitions/attachment"
     }
   },
   "additionalProperties": false,
@@ -26,6 +20,9 @@
   "definitions": {
     "authenticationTag": {
       "$ref": "./parts/authentication-tag.schema.json"
+    },
+    "attachment": {
+      "$ref": "./parts/attachment.schema.json"
     }
   }
 }
diff --git a/spec/parts/attachment.schema.json b/spec/parts/attachment.schema.json
new file mode 100644
index 0000000000000000000000000000000000000000..dc32f3ab0710ba230c2dcf3ee9a42b5217e53354
--- /dev/null
+++ b/spec/parts/attachment.schema.json
@@ -0,0 +1,10 @@
+{
+  "title": "Attachment",
+  "type": "object",
+  "patternProperties": {
+    "^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$": {
+      "$ref": "./authentication-tag.schema.json"
+    }
+  },
+  "additionalProperties": false
+}
diff --git a/spec/set-payload.schema.json b/spec/set-payload.schema.json
index f24374ba71cb58511292c4f985e706b684715328..6da77a81cefd9dfc8d19e7b342f38376e45a80de 100644
--- a/spec/set-payload.schema.json
+++ b/spec/set-payload.schema.json
@@ -47,7 +47,7 @@
           "type": "object",
           "properties": {
             "authenticationTags": {
-              "$ref": "#/$defs/authenticationTags"
+              "$ref": "#/$defs/authenticationTagsSubmission"
             }
           },
           "required": [
@@ -95,7 +95,7 @@
               "$ref": "#/$defs/problems"
             },
             "authenticationTags": {
-              "$ref": "#/$defs/authenticationTags"
+              "$ref": "#/$defs/authenticationTagsSubmission"
             }
           },
           "required": [
@@ -115,7 +115,7 @@
           "type": "object",
           "properties": {
             "authenticationTags": {
-              "$ref": "#/$defs/authenticationTags"
+              "$ref": "#/$defs/authenticationTagsReply"
             }
           },
           "required": [
@@ -158,7 +158,7 @@
               "$ref": "#/$defs/problems"
             },
             "authenticationTags": {
-              "$ref": "#/$defs/authenticationTags"
+              "$ref": "#/$defs/authenticationTagsReply"
             }
           },
           "required": [
@@ -186,11 +186,20 @@
     "events"
   ],
   "$defs": {
-    "authenticationTags": {
-      "$ref": "./authentication-tags.schema.json"
+    "authenticationTagsSubmission": {
+      "$ref": "./authentication-tags-submission.schema.json"
+    },
+    "authenticationTagsReply": {
+      "$ref": "./authentication-tags-reply.schema.json"
     },
     "problems": {
       "$ref": "./problems.schema.json"
+    },
+    "authenticationTag": {
+      "$ref": "./parts/authentication-tag.schema.json"
+    },
+    "attachment": {
+      "$ref": "./parts/attachment.schema.json"
     }
   }
 }