diff --git a/docs/openapi/components/schemas/credentials/USDAPermitToImportCredential.yml b/docs/openapi/components/schemas/credentials/USDAPermitToImportCredential.yml
index 1f4df4409..ebc16bfec 100644
--- a/docs/openapi/components/schemas/credentials/USDAPermitToImportCredential.yml
+++ b/docs/openapi/components/schemas/credentials/USDAPermitToImportCredential.yml
@@ -100,6 +100,13 @@ properties:
         $linkedData:
           term: intendedUse
           '@id': https://vocabulary.uncefact.org/intendedUse
+      approvalDate:
+        title: Signature Date
+        description: Date when the application was approved.
+        type: string
+        $linkedData:
+          term: approvalDate
+          '@id': https://vocabulary.uncefact.org/issueDateTime
     additionalProperties: false
     required:
       - applicationNumber		
@@ -107,6 +114,7 @@ properties:
       - applicant
       - permittee	
       - intendedUse
+      - approvalDate
 additionalProperties: false
 required:
   - '@context'
@@ -339,6 +347,7 @@ example: |-
           "leiCode": "54321351219389121979"
         }
       },
-      "intendedUse": "fruits and vegetables"
+      "intendedUse": "fruits and vegetables",
+      "approvalDate": "2021-02-16"
     }
   }
\ No newline at end of file