diff --git a/release-schema.json b/release-schema.json
index 04a4452..a7fcf0d 100644
--- a/release-schema.json
+++ b/release-schema.json
@@ -15,7 +15,12 @@
      "description": "An optional description for the whole contracting process. If no process description is given, the tender, award or contract description may be used in interfaces.",
      "type": "string"
     },
-    "buyer":null
+    "buyer":null,
+	"publicAuthority": {
+		"title": "Public authority",
+		"description": "The public authority is the unit/body/department within a government that is tendering and contracting the project. The public counterpart in the PPP contract.",
+		"$ref": "#/definitions/OrganizationReference"
+	}
   },
 
 "definitions":
@@ -44,6 +49,19 @@
         }
     }
    },
+	"Award": {
+		"properties": {
+			"privateParty": {
+				"title": "Private party",
+				"description": "The counter party of the procuring authority in the PPP contract. A private entity which has been granted the contract to construct and operate a government asset, and which is usually created under the form of a Special Purpose Vehicle or SPV.",
+				"type": "array",
+				"items": {
+					"$ref": "#/definitions/OrganizationReference"
+				}
+			},
+			"suppliers": null
+		}
+	},
    "Contract": {
     "properties":{
       "financialModel":{