diff --git a/_format/1.1/index.md b/_format/1.1/index.md
index cca72d398..be49c5270 100644
--- a/_format/1.1/index.md
+++ b/_format/1.1/index.md
@@ -631,6 +631,26 @@ The following characters **MUST NOT** be used in member names:
 - U+007F DELETE
 - U+0000 to U+001F (C0 Controls)
 
+#### <a href="#document-member-names-at-members" id="document-member-names-at-members" class="headerlink"></a> @-Members
+
+Member names **MAY** also begin with an at sign (U+0040 COMMERCIAL AT, "@"). 
+Members named this way are called "@-Members". @-Members **MAY** appear 
+anywhere in a JSON API document. 
+
+However, JSON API processors **MUST** completely ignore @-Members (i.e. not 
+treat them as JSON API data). 
+
+Moreover, the existence of @-Members **MUST** be ignored when interpreting all 
+JSON API definitions and processing instructions given outside of this 
+subsection. For example, an [attribute][attributes] is defined above as any 
+member of the attributes object. However, because @-Members must be ignored 
+when interpreting that definition, an @-Member that occurs in an attributes 
+object is not an attribute. 
+
+> Note: Among other things, "@" members can be used to add JSON-LD data to a 
+JSON API document. Such documents should be served with [an extra header](http://www.w3.org/TR/json-ld/#interpreting-json-as-json-ld) 
+to convey to JSON-LD clients that they contain JSON-LD data.
+
 ## <a href="#fetching" id="fetching" class="headerlink"></a> Fetching Data
 
 Data, including resources and relationships, can be fetched by sending a
diff --git a/_format/1.1/normative-statements.json b/_format/1.1/normative-statements.json
index d05f78c6c..c645e8c93 100644
--- a/_format/1.1/normative-statements.json
+++ b/_format/1.1/normative-statements.json
@@ -89,7 +89,11 @@ layout: null
             { "id": "member-name-globally-allowed", "type": "normative-statements" },
             { "id": "member-name-url-safe", "type": "normative-statements" },
             { "id": "member-name-allowed-characters", "type": "normative-statements" },
-            { "id": "member-name-reserved-characters", "type": "normative-statements" }
+            { "id": "member-name-reserved-characters", "type": "normative-statements" },
+            { "id": "member-name-at-members-definition", "type": "normative-statements" },
+            { "id": "member-name-at-members-where", "type": "normative-statements" },
+            { "id": "member-name-at-members-no-process", "type": "normative-statements" },
+            { "id": "member-name-at-members-ignore-for-definitions", "type": "normative-statements" }
           ]
         }
       }
@@ -1002,6 +1006,58 @@ layout: null
         }
       }
     },
+    {
+      "id": "member-name-at-members-definition",
+      "type": "normative-statements",
+      "attributes": {
+        "level": "MAY",
+        "description": "Member names **MAY** also begin with an at sign (U+0040 COMMERCIAL AT, \"@\"). Members named this way are called \"@-Members\"."
+      },
+      "relationships": {
+        "section": {
+          "data": { "id": "document-structure", "type": "sections" }
+        }
+      }
+    },
+    {
+      "id": "member-name-at-members-where",
+      "type": "normative-statements",
+      "attributes": {
+        "level": "MAY",
+        "description": "@-Members **MAY** appear anywhere in a JSON API document."
+      },
+      "relationships": {
+        "section": {
+          "data": { "id": "document-structure", "type": "sections" }
+        }
+      }
+    },
+    {
+      "id": "member-name-at-members-no-process",
+      "type": "normative-statements",
+      "attributes": {
+        "level": "MUST",
+        "description": "JSON API processors **MUST** completely ignore @-Members (i.e. not treat them as JSON API data)."
+      },
+      "relationships": {
+        "section": {
+          "data": { "id": "document-structure", "type": "sections" }
+        }
+      }
+    },
+    {
+      "id": "member-name-at-members-ignore-for-definitions",
+      "type": "normative-statements",
+      "attributes": {
+        "level": "MUST",
+        "description": "Moreover, the existence of @-Members **MUST** be ignored when interpreting all JSON API definitions and processing instructions given outside of the @-Members subsection."
+      },
+      "relationships": {
+        "section": {
+          "data": { "id": "document-structure", "type": "sections" }
+        }
+      }
+    },
     {
       "id": "fetch-url-support",
       "type": "normative-statements",