diff --git a/README.md b/README.md
index 1bf55db..b9cb2d6 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,7 @@ by the [Open Charge Alliance][i1].
       - [Utility enums](#utility-enums)
       - [Message types `SEND` and `CALLRESULTERROR` in OCPP 2.1](#message-types-send-and-callresulterror-in-ocpp-21)
       - [Utility types for OCPP 1.6](#utility-types-for-ocpp-16)
+      - [OCPP 1.6 Security Whitepaper](#ocpp-16-security-whitepaper)
       - [Utility types for OCPP 2.0](#utility-types-for-ocpp-20)
       - [Utility types for OCPP 2.1](#utility-types-for-ocpp-21)
     - [`ChargingManager` class](#chargingmanager-class)
@@ -317,6 +318,15 @@ The following types may be used to model value descriptors within
 OCPP16.Status               // status ("Available", "Reserved", ...)
 ```
 
+#### OCPP 1.6 Security Whitepaper
+
+This library includes types and schemas from the [OCPP 1.6 Security Whitepaper]
+(4th edition) released on Feb 5th, 2026. The paper standardizes additional OCPP
+messages that model some of the security enhancements introduced in OCPP 2.0,
+backporting these features to OCPP 1.6.
+
+[OCPP 1.6 Security Whitepaper]: https://openchargealliance.org/ocpp-info-whitepapers/ocpp-1-6-security-whitepaper-4th-edition/
+
 #### Utility types for OCPP 2.0
 
 ```typescript
diff --git a/package.json b/package.json
index 1db73d0..a2f4949 100644
--- a/package.json
+++ b/package.json
@@ -64,6 +64,7 @@
     "JSON",
     "JSON Schema",
     "Open Charge Alliance",
-    "Charging Station"
+    "Charging Station",
+    "Security Whitepaper"
   ]
 }
diff --git a/schemas/ocpp16/CertificateSigned.json b/schemas/ocpp16/CertificateSigned.json
new file mode 100644
index 0000000..e8a323f
--- /dev/null
+++ b/schemas/ocpp16/CertificateSigned.json
@@ -0,0 +1,15 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:CertificateSigned.req",
+    "type": "object",
+    "properties": {
+        "certificateChain": {
+            "type": "string",
+            "maxLength": 10000
+        }
+    },
+    "additionalProperties": false,
+    "required": [
+        "certificateChain"
+    ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/CertificateSignedResponse.json b/schemas/ocpp16/CertificateSignedResponse.json
new file mode 100644
index 0000000..4907030
--- /dev/null
+++ b/schemas/ocpp16/CertificateSignedResponse.json
@@ -0,0 +1,24 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:CertificateSigned.conf",
+  "definitions": {
+    "CertificateSignedStatusEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "Accepted",
+        "Rejected"
+      ]
+    }
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "status": {
+      "$ref": "#/definitions/CertificateSignedStatusEnumType"
+    }
+  },
+  "required": [
+    "status"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/DeleteCertificate.json b/schemas/ocpp16/DeleteCertificate.json
new file mode 100644
index 0000000..a0d5ad8
--- /dev/null
+++ b/schemas/ocpp16/DeleteCertificate.json
@@ -0,0 +1,52 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:DeleteCertificate.req",
+  "definitions": {
+    "HashAlgorithmEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "SHA256",
+        "SHA384",
+        "SHA512"
+      ]
+    },
+    "CertificateHashDataType": {
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "hashAlgorithm": {
+          "$ref": "#/definitions/HashAlgorithmEnumType"
+        },
+        "issuerNameHash": {
+          "type": "string",
+          "maxLength": 128
+        },
+        "issuerKeyHash": {
+          "type": "string",
+          "maxLength": 128
+        },
+        "serialNumber": {
+          "type": "string",
+          "maxLength": 40
+        }
+      },
+      "required": [
+        "hashAlgorithm",
+        "issuerNameHash",
+        "issuerKeyHash",
+        "serialNumber"
+      ]
+    }
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "certificateHashData": {
+      "$ref": "#/definitions/CertificateHashDataType"
+    }
+  },
+  "required": [
+    "certificateHashData"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/DeleteCertificateResponse.json b/schemas/ocpp16/DeleteCertificateResponse.json
new file mode 100644
index 0000000..75c30a2
--- /dev/null
+++ b/schemas/ocpp16/DeleteCertificateResponse.json
@@ -0,0 +1,25 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:DeleteCertificate.conf",
+  "definitions": {
+    "DeleteCertificateStatusEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "Accepted",
+        "Failed",
+        "NotFound"
+      ]
+    }
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "status": {
+      "$ref": "#/definitions/DeleteCertificateStatusEnumType"
+    }
+  },
+  "required": [
+    "status"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/ExtendedTriggerMessage.json b/schemas/ocpp16/ExtendedTriggerMessage.json
new file mode 100644
index 0000000..02735dd
--- /dev/null
+++ b/schemas/ocpp16/ExtendedTriggerMessage.json
@@ -0,0 +1,32 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:ExtendedTriggerMessage.req",
+  "definitions": {
+    "MessageTriggerEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "BootNotification",
+        "LogStatusNotification",
+        "FirmwareStatusNotification",
+        "Heartbeat",
+        "MeterValues",
+        "SignChargePointCertificate",        
+        "StatusNotification"        
+      ]
+    }	  
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {    
+    "requestedMessage": {
+      "$ref": "#/definitions/MessageTriggerEnumType"
+    },
+	"connectorId": {
+          "type": "integer"
+    }  
+  },
+  "required": [
+    "requestedMessage"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/ExtendedTriggerMessageResponse.json b/schemas/ocpp16/ExtendedTriggerMessageResponse.json
new file mode 100644
index 0000000..a32f4c6
--- /dev/null
+++ b/schemas/ocpp16/ExtendedTriggerMessageResponse.json
@@ -0,0 +1,25 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:ExtendedTriggerMessage.conf",
+  "definitions": {
+    "TriggerMessageStatusEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "Accepted",
+        "Rejected",
+        "NotImplemented"
+      ]
+    }
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "status": {
+      "$ref": "#/definitions/TriggerMessageStatusEnumType"
+    }
+  },
+  "required": [
+    "status"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/GetInstalledCertificateIds.json b/schemas/ocpp16/GetInstalledCertificateIds.json
new file mode 100644
index 0000000..b3c91f1
--- /dev/null
+++ b/schemas/ocpp16/GetInstalledCertificateIds.json
@@ -0,0 +1,24 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:GetInstalledCertificateIds.req",
+  "definitions": {
+    "CertificateUseEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "CentralSystemRootCertificate",
+        "ManufacturerRootCertificate"
+      ]
+    }
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "certificateType": {
+      "$ref": "#/definitions/CertificateUseEnumType"
+    }
+  },
+  "required": [
+    "certificateType"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/GetInstalledCertificateIdsResponse.json b/schemas/ocpp16/GetInstalledCertificateIdsResponse.json
new file mode 100644
index 0000000..2e78d76
--- /dev/null
+++ b/schemas/ocpp16/GetInstalledCertificateIdsResponse.json
@@ -0,0 +1,69 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:GetInstalledCertificateIds.conf",
+  "definitions": {
+    "GetInstalledCertificateStatusEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "Accepted",
+        "NotFound"
+      ]
+    },
+    "HashAlgorithmEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "SHA256",
+        "SHA384",
+        "SHA512"
+      ]
+    },
+    "CertificateHashDataType": {
+      "javaType": "CertificateHashData",
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "hashAlgorithm": {
+          "$ref": "#/definitions/HashAlgorithmEnumType"
+        },
+        "issuerNameHash": {
+          "type": "string",
+          "maxLength": 128
+        },
+        "issuerKeyHash": {
+          "type": "string",
+          "maxLength": 128
+        },
+        "serialNumber": {
+          "type": "string",
+          "maxLength": 40
+        }
+      },
+      "required": [
+        "hashAlgorithm",
+        "issuerNameHash",
+        "issuerKeyHash",
+        "serialNumber"
+      ]
+    }
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "certificateHashData": {
+      "type": "array",
+      "additionalItems": false,
+      "items": {
+        "$ref": "#/definitions/CertificateHashDataType"
+      },
+      "minItems": 1
+    },
+    "status": {
+      "$ref": "#/definitions/GetInstalledCertificateStatusEnumType"
+    }
+  },
+  "required": [
+    "status"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/GetLog.json b/schemas/ocpp16/GetLog.json
new file mode 100644
index 0000000..f58a1a2
--- /dev/null
+++ b/schemas/ocpp16/GetLog.json
@@ -0,0 +1,59 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:GetLog.req",
+  "definitions": {
+    "LogEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "DiagnosticsLog",
+        "SecurityLog"
+      ]
+    },
+    "LogParametersType": {
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "remoteLocation": {
+          "type": "string",
+          "maxLength": 512
+        },
+        "oldestTimestamp": {
+          "type": "string",
+          "format": "date-time"
+        },
+        "latestTimestamp": {
+          "type": "string",
+          "format": "date-time"
+        }
+      },
+      "required": [
+        "remoteLocation"
+      ]
+    }
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "log": {
+      "$ref": "#/definitions/LogParametersType"
+    },
+    "logType": {
+      "$ref": "#/definitions/LogEnumType"
+    },
+    "requestId": {
+      "type": "integer"
+    },
+    "retries": {
+      "type": "integer"
+    },
+    "retryInterval": {
+      "type": "integer"
+    }
+  },
+  "required": [
+    "logType",
+    "requestId",
+    "log"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/GetLogResponse.json b/schemas/ocpp16/GetLogResponse.json
new file mode 100644
index 0000000..31003df
--- /dev/null
+++ b/schemas/ocpp16/GetLogResponse.json
@@ -0,0 +1,29 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:GetLog.conf",
+  "definitions": {
+    "LogStatusEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "Accepted",
+        "Rejected",
+        "AcceptedCanceled"
+      ]
+    }
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "status": {
+      "$ref": "#/definitions/LogStatusEnumType"
+    },
+    "filename": {
+      "type": "string",
+      "maxLength": 255
+    }
+  },
+  "required": [
+    "status"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/InstallCertificate.json b/schemas/ocpp16/InstallCertificate.json
new file mode 100644
index 0000000..a991593
--- /dev/null
+++ b/schemas/ocpp16/InstallCertificate.json
@@ -0,0 +1,29 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:InstallCertificate.req",
+  "definitions": {
+    "CertificateUseEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "CentralSystemRootCertificate",
+        "ManufacturerRootCertificate"
+      ]
+    }
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "certificateType": {
+      "$ref": "#/definitions/CertificateUseEnumType"
+    },
+    "certificate": {
+      "type": "string",
+      "maxLength": 5500
+    }
+  },
+  "required": [
+    "certificateType",
+    "certificate"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/InstallCertificateResponse.json b/schemas/ocpp16/InstallCertificateResponse.json
new file mode 100644
index 0000000..f7afcb5
--- /dev/null
+++ b/schemas/ocpp16/InstallCertificateResponse.json
@@ -0,0 +1,25 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:InstallCertificate.conf",
+  "definitions": {
+    "InstallCertificateStatusEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "Accepted",
+        "Failed",
+        "Rejected"
+      ]
+    }
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "status": {
+      "$ref": "#/definitions/InstallCertificateStatusEnumType"
+    }
+  },
+  "required": [
+    "status"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/LogStatusNotification.json b/schemas/ocpp16/LogStatusNotification.json
new file mode 100644
index 0000000..6b3ea7e
--- /dev/null
+++ b/schemas/ocpp16/LogStatusNotification.json
@@ -0,0 +1,32 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:LogStatusNotification.req",
+  "definitions": {
+    "UploadLogStatusEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "BadMessage",
+        "Idle",
+        "NotSupportedOperation",
+        "PermissionDenied",
+        "Uploaded",
+        "UploadFailure",
+        "Uploading"
+      ]
+    }
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "status": {
+      "$ref": "#/definitions/UploadLogStatusEnumType"
+    },
+    "requestId": {
+      "type": "integer"
+    }
+  },
+  "required": [
+    "status"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/LogStatusNotificationResponse.json b/schemas/ocpp16/LogStatusNotificationResponse.json
new file mode 100644
index 0000000..2685517
--- /dev/null
+++ b/schemas/ocpp16/LogStatusNotificationResponse.json
@@ -0,0 +1,6 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:LogStatusNotification.conf",
+  "type": "object",
+  "additionalProperties": false
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/SecurityEventNotification.json b/schemas/ocpp16/SecurityEventNotification.json
new file mode 100644
index 0000000..f1e484f
--- /dev/null
+++ b/schemas/ocpp16/SecurityEventNotification.json
@@ -0,0 +1,24 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:SecurityEventNotification.req",
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "type": {
+      "type": "string",
+      "maxLength": 50
+    },
+    "timestamp": {
+      "type": "string",
+      "format": "date-time"
+    },
+    "techInfo": {
+      "type": "string",
+      "maxLength": 255
+    }
+  },
+  "required": [
+    "type",
+    "timestamp"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/SecurityEventNotificationResponse.json b/schemas/ocpp16/SecurityEventNotificationResponse.json
new file mode 100644
index 0000000..244ff74
--- /dev/null
+++ b/schemas/ocpp16/SecurityEventNotificationResponse.json
@@ -0,0 +1,6 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:SecurityEventNotification.conf",
+  "type": "object",
+  "additionalProperties": false
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/SignCertificate.json b/schemas/ocpp16/SignCertificate.json
new file mode 100644
index 0000000..b27650e
--- /dev/null
+++ b/schemas/ocpp16/SignCertificate.json
@@ -0,0 +1,15 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:SignCertificate.req",
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "csr": {
+      "type": "string",
+      "maxLength": 5500
+    }
+  },
+  "required": [
+    "csr"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/SignCertificateResponse.json b/schemas/ocpp16/SignCertificateResponse.json
new file mode 100644
index 0000000..449d5ff
--- /dev/null
+++ b/schemas/ocpp16/SignCertificateResponse.json
@@ -0,0 +1,24 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:SignCertificate.conf",
+  "definitions": {
+    "GenericStatusEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "Accepted",
+        "Rejected"
+      ]
+    }
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "status": {
+      "$ref": "#/definitions/GenericStatusEnumType"
+    }
+  },
+  "required": [
+    "status"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/SignedFirmwareStatusNotification.json b/schemas/ocpp16/SignedFirmwareStatusNotification.json
new file mode 100644
index 0000000..a0ce83c
--- /dev/null
+++ b/schemas/ocpp16/SignedFirmwareStatusNotification.json
@@ -0,0 +1,39 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:SignedFirmwareStatusNotification.req",
+  "definitions": {
+    "FirmwareStatusEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "Downloaded",
+        "DownloadFailed",
+        "Downloading",
+        "DownloadScheduled",
+        "DownloadPaused",
+        "Idle",
+        "InstallationFailed",
+        "Installing",
+        "Installed",
+        "InstallRebooting",
+        "InstallScheduled",
+        "InstallVerificationFailed",
+        "InvalidSignature",
+        "SignatureVerified"
+      ]
+    }
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "status": {
+      "$ref": "#/definitions/FirmwareStatusEnumType"
+    },
+    "requestId": {
+      "type": "integer"
+    }
+  },
+  "required": [
+    "status"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/SignedFirmwareStatusNotificationResponse.json b/schemas/ocpp16/SignedFirmwareStatusNotificationResponse.json
new file mode 100644
index 0000000..3d9499e
--- /dev/null
+++ b/schemas/ocpp16/SignedFirmwareStatusNotificationResponse.json
@@ -0,0 +1,6 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:SignedFirmwareStatusNotification.conf",
+  "type": "object",
+  "additionalProperties": false
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/SignedUpdateFirmware.json b/schemas/ocpp16/SignedUpdateFirmware.json
new file mode 100644
index 0000000..756c149
--- /dev/null
+++ b/schemas/ocpp16/SignedUpdateFirmware.json
@@ -0,0 +1,58 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:SignedUpdateFirmware.req",
+  "definitions": {
+    "FirmwareType": {
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "location": {
+          "type": "string",
+          "maxLength": 512
+        },
+        "retrieveDateTime": {
+          "type": "string",
+          "format": "date-time"
+        },
+        "installDateTime": {
+          "type": "string",
+          "format": "date-time"
+        },
+        "signingCertificate": {
+          "type": "string",
+          "maxLength": 5500
+        },
+        "signature": {
+          "type": "string",
+          "maxLength": 800
+        }
+      },
+      "required": [
+        "location",
+        "retrieveDateTime",
+        "signingCertificate",
+        "signature"
+      ]
+    }
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "retries": {
+      "type": "integer"
+    },
+    "retryInterval": {
+      "type": "integer"
+    },
+    "requestId": {
+      "type": "integer"
+    },
+    "firmware": {
+      "$ref": "#/definitions/FirmwareType"
+    }
+  },
+  "required": [
+    "requestId",
+    "firmware"
+  ]
+}
\ No newline at end of file
diff --git a/schemas/ocpp16/SignedUpdateFirmwareResponse.json b/schemas/ocpp16/SignedUpdateFirmwareResponse.json
new file mode 100644
index 0000000..e18d6b2
--- /dev/null
+++ b/schemas/ocpp16/SignedUpdateFirmwareResponse.json
@@ -0,0 +1,27 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "urn:OCPP:Cp:1.6:2020:3:SignedUpdateFirmware.conf",
+  "definitions": {
+    "UpdateFirmwareStatusEnumType": {
+      "type": "string",
+      "additionalProperties": false,
+      "enum": [
+        "Accepted",
+        "Rejected",
+        "AcceptedCanceled",
+        "InvalidCertificate",
+        "RevokedCertificate"
+      ]
+    }
+  },
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "status": {
+      "$ref": "#/definitions/UpdateFirmwareStatusEnumType"
+    }
+  },
+  "required": [
+    "status"
+  ]
+}
\ No newline at end of file
diff --git a/src/ocpp16/call.test.ts b/src/ocpp16/call.test.ts
index 580bda7..d091906 100644
--- a/src/ocpp16/call.test.ts
+++ b/src/ocpp16/call.test.ts
@@ -77,6 +77,24 @@ describe('OCPP16 - Call', () => {
 
     });
 
+    describe('GetLog', () => {
+      it('should validate GetLog request', () => {
+        const call = [
+          2,
+          "983728ed-5d83-467f-be81-81282b93e8b2",
+          OCPP16.Action.GetLog,
+          {
+            log: {
+              remoteLocation: 'remote',
+            },
+            logType: 'DiagnosticsLog',
+            requestId: 0,
+          }
+        ];
+        deepStrictEqual(validate(call), true);
+      });
+    });
+
   });
 
 });
diff --git a/src/ocpp16/call.ts b/src/ocpp16/call.ts
index 9e25794..22c8210 100644
--- a/src/ocpp16/call.ts
+++ b/src/ocpp16/call.ts
@@ -37,6 +37,18 @@ export type TriggerMessageCall = BaseMessage<MessageType.CALL, [action: Action.T
 export type UnlockConnectorCall = BaseMessage<MessageType.CALL, [action: Action.UnlockConnector, payload: types.UnlockConnectorRequest]>;
 export type UpdateFirmwareCall = BaseMessage<MessageType.CALL, [action: Action.UpdateFirmware, payload: types.UpdateFirmwareRequest]>;
 
+export type CertificateSignedCall = BaseMessage<MessageType.CALL, [action: Action.CertificateSigned, payload: types.CertificateSignedRequest]>;
+export type DeleteCertificateCall = BaseMessage<MessageType.CALL, [action: Action.DeleteCertificate, payload: types.DeleteCertificateRequest]>;
+export type ExtendedTriggerMessageCall = BaseMessage<MessageType.CALL, [action: Action.ExtendedTriggerMessage, payload: types.ExtendedTriggerMessageRequest]>;
+export type GetInstalledCertificateIdsCall = BaseMessage<MessageType.CALL, [action: Action.GetInstalledCertificateIds, payload: types.GetInstalledCertificateIdsRequest]>;
+export type GetLogCall = BaseMessage<MessageType.CALL, [action: Action.GetLog, payload: types.GetLogRequest]>;
+export type InstallCertificateCall = BaseMessage<MessageType.CALL, [action: Action.InstallCertificate, payload: types.InstallCertificateRequest]>;
+export type LogStatusNotificationCall = BaseMessage<MessageType.CALL, [action: Action.LogStatusNotification, payload: types.LogStatusNotificationRequest]>;
+export type SecurityEventNotificationCall = BaseMessage<MessageType.CALL, [action: Action.SecurityEventNotification, payload: types.SecurityEventNotificationRequest]>;
+export type SignCertificateCall = BaseMessage<MessageType.CALL, [action: Action.SignCertificate, payload: types.SignCertificateRequest]>;
+export type SignedFirmwareStatusNotificationCall = BaseMessage<MessageType.CALL, [action: Action.SignedFirmwareStatusNotification, payload: types.SignedFirmwareStatusNotificationRequest]>;
+export type SignedUpdateFirmwareCall = BaseMessage<MessageType.CALL, [action: Action.SignedUpdateFirmware, payload: types.SignedUpdateFirmwareRequest]>;
+
 export type Call = AuthorizeCall
   | BootNotificationCall
   | CancelReservationCall
@@ -65,6 +77,17 @@ export type Call = AuthorizeCall
   | TriggerMessageCall
   | UnlockConnectorCall
   | UpdateFirmwareCall
+  | CertificateSignedCall
+  | DeleteCertificateCall
+  | ExtendedTriggerMessageCall
+  | GetInstalledCertificateIdsCall
+  | GetLogCall
+  | InstallCertificateCall
+  | LogStatusNotificationCall
+  | SecurityEventNotificationCall
+  | SignCertificateCall
+  | SignedFirmwareStatusNotificationCall
+  | SignedUpdateFirmwareCall
 ;
 
 const schemasByCommand: Record<Action, object> = {
@@ -96,6 +119,17 @@ const schemasByCommand: Record<Action, object> = {
   [Action.TriggerMessage]: schemas.TriggerMessageRequest,
   [Action.UnlockConnector]: schemas.UnlockConnectorRequest,
   [Action.UpdateFirmware]: schemas.UpdateFirmwareRequest,
+  [Action.CertificateSigned]: schemas.CertificateSignedRequest,
+  [Action.DeleteCertificate]: schemas.DeleteCertificateRequest,
+  [Action.ExtendedTriggerMessage]: schemas.ExtendedTriggerMessageRequest,
+  [Action.GetInstalledCertificateIds]: schemas.GetInstalledCertificateIdsRequest,
+  [Action.GetLog]: schemas.GetLogRequest,
+  [Action.InstallCertificate]: schemas.InstallCertificateRequest,
+  [Action.LogStatusNotification]: schemas.LogStatusNotificationRequest,
+  [Action.SecurityEventNotification]: schemas.SecurityEventNotificationRequest,
+  [Action.SignCertificate]: schemas.SignCertificateRequest,
+  [Action.SignedFirmwareStatusNotification]: schemas.SignedFirmwareStatusNotificationRequest,
+  [Action.SignedUpdateFirmware]: schemas.SignedUpdateFirmwareRequest,
 };
 
 type BaseCall = BaseMessage<MessageType.CALL, [action: Action, payload: {}]>;
diff --git a/src/ocpp16/callresult.ts b/src/ocpp16/callresult.ts
index 7faccf3..db42f42 100644
--- a/src/ocpp16/callresult.ts
+++ b/src/ocpp16/callresult.ts
@@ -51,8 +51,19 @@ export type StopTransactionCallResult = UncheckedCallResult<types.StopTransactio
 export type TriggerMessageCallResult = UncheckedCallResult<types.TriggerMessageResponse>;
 export type UnlockConnectorCallResult = UncheckedCallResult<types.UnlockConnectorResponse>;
 export type UpdateFirmwareCallResult = UncheckedCallResult<types.UpdateFirmwareResponse>;
+export type CertificateSignedCallResult = UncheckedCallResult<types.CertificateSignedResponse>;
+export type DeleteCertificateCallResult = UncheckedCallResult<types.DeleteCertificateResponse>;
+export type ExtendedTriggerMessageCallResult = UncheckedCallResult<types.ExtendedTriggerMessageResponse>;
+export type GetInstalledCertificateIdsCallResult = UncheckedCallResult<types.GetInstalledCertificateIdsResponse>;
+export type GetLogCallResult = UncheckedCallResult<types.GetLogResponse>;
+export type InstallCertificateCallResult = UncheckedCallResult<types.InstallCertificateResponse>;
+export type LogStatusNotificationCallResult = UncheckedCallResult<types.LogStatusNotificationResponse>;
+export type SecurityEventNotificationCallResult = UncheckedCallResult<types.SecurityEventNotificationResponse>;
+export type SignCertificateCallResult = UncheckedCallResult<types.SignCertificateResponse>;
+export type SignedFirmwareStatusNotificationCallResult = UncheckedCallResult<types.SignedFirmwareStatusNotificationResponse>;
+export type SignedUpdateFirmwareCallResult = UncheckedCallResult<types.SignedUpdateFirmwareResponse>;
 
-export type CallResult = 
+export type CallResult =
   | AuthorizeCallResult
   | BootNotificationCallResult
   | CancelReservationCallResult
@@ -81,6 +92,17 @@ export type CallResult =
   | TriggerMessageCallResult
   | UnlockConnectorCallResult
   | UpdateFirmwareCallResult
+  | CertificateSignedCallResult
+  | DeleteCertificateCallResult
+  | ExtendedTriggerMessageCallResult
+  | GetInstalledCertificateIdsCallResult
+  | GetLogCallResult
+  | InstallCertificateCallResult
+  | LogStatusNotificationCallResult
+  | SecurityEventNotificationCallResult
+  | SignCertificateCallResult
+  | SignedFirmwareStatusNotificationCallResult
+  | SignedUpdateFirmwareCallResult
 ;
 
 const schemasByCommand: Record<Action, object> = {
@@ -112,6 +134,17 @@ const schemasByCommand: Record<Action, object> = {
   [Action.TriggerMessage]: schemas.TriggerMessageResponse,
   [Action.UnlockConnector]: schemas.UnlockConnectorResponse,
   [Action.UpdateFirmware]: schemas.UpdateFirmwareResponse,
+  [Action.CertificateSigned]: schemas.CertificateSignedResponse,
+  [Action.DeleteCertificate]: schemas.DeleteCertificateResponse,
+  [Action.ExtendedTriggerMessage]: schemas.ExtendedTriggerMessageResponse,
+  [Action.GetInstalledCertificateIds]: schemas.GetInstalledCertificateIdsResponse,
+  [Action.GetLog]: schemas.GetLogResponse,
+  [Action.InstallCertificate]: schemas.InstallCertificateResponse,
+  [Action.LogStatusNotification]: schemas.LogStatusNotificationResponse,
+  [Action.SecurityEventNotification]: schemas.SecurityEventNotificationResponse,
+  [Action.SignCertificate]: schemas.SignCertificateResponse,
+  [Action.SignedFirmwareStatusNotification]: schemas.SignedFirmwareStatusNotificationResponse,
+  [Action.SignedUpdateFirmware]: schemas.SignedUpdateFirmwareResponse,
 };
 
 export const validateCallResult: ValidateFn<any, UncheckedCallResult> = assign(
@@ -155,6 +188,17 @@ export interface CallResultTypesByAction extends Record<Action, CallResult> {
   [Action.TriggerMessage]: TriggerMessageCallResult,
   [Action.UnlockConnector]: UnlockConnectorCallResult,
   [Action.UpdateFirmware]: UpdateFirmwareCallResult,
+  [Action.CertificateSigned]: CertificateSignedCallResult,
+  [Action.DeleteCertificate]: DeleteCertificateCallResult,
+  [Action.ExtendedTriggerMessage]: ExtendedTriggerMessageCallResult,
+  [Action.GetInstalledCertificateIds]: GetInstalledCertificateIdsCallResult,
+  [Action.GetLog]: GetLogCallResult,
+  [Action.InstallCertificate]: InstallCertificateCallResult,
+  [Action.LogStatusNotification]: LogStatusNotificationCallResult,
+  [Action.SecurityEventNotification]: SecurityEventNotificationCallResult,
+  [Action.SignCertificate]: SignCertificateCallResult,
+  [Action.SignedFirmwareStatusNotification]: SignedFirmwareStatusNotificationCallResult,
+  [Action.SignedUpdateFirmware]: SignedUpdateFirmwareCallResult,
 };
 
 export type CheckedCallResult<C extends Call> = CallResultTypesByAction[C[2]];
diff --git a/src/ocpp16/index.ts b/src/ocpp16/index.ts
index 4c2dde6..3cda128 100644
--- a/src/ocpp16/index.ts
+++ b/src/ocpp16/index.ts
@@ -28,6 +28,17 @@ import type {
   TriggerMessageRequest,
   UnlockConnectorRequest,
   UpdateFirmwareRequest,
+  CertificateSignedRequest,
+  DeleteCertificateRequest,
+  ExtendedTriggerMessageRequest,
+  GetInstalledCertificateIdsRequest,
+  GetLogRequest,
+  InstallCertificateRequest,
+  LogStatusNotificationRequest,
+  SecurityEventNotificationRequest,
+  SignCertificateRequest,
+  SignedFirmwareStatusNotificationRequest,
+  SignedUpdateFirmwareRequest,
 } from './types.js';
 
 import type {
@@ -59,6 +70,17 @@ import type {
   TriggerMessageResponse,
   UnlockConnectorResponse,
   UpdateFirmwareResponse,
+  CertificateSignedResponse,
+  DeleteCertificateResponse,
+  ExtendedTriggerMessageResponse,
+  GetInstalledCertificateIdsResponse,
+  GetLogResponse,
+  InstallCertificateResponse,
+  LogStatusNotificationResponse,
+  SecurityEventNotificationResponse,
+  SignCertificateResponse,
+  SignedFirmwareStatusNotificationResponse,
+  SignedUpdateFirmwareResponse,
 } from './types.js';
 
 import type {
@@ -90,6 +112,17 @@ import type {
   TriggerMessageCall,
   UnlockConnectorCall,
   UpdateFirmwareCall,
+  CertificateSignedCall,
+  DeleteCertificateCall,
+  ExtendedTriggerMessageCall,
+  GetInstalledCertificateIdsCall,
+  GetLogCall,
+  InstallCertificateCall,
+  LogStatusNotificationCall,
+  SecurityEventNotificationCall,
+  SignCertificateCall,
+  SignedFirmwareStatusNotificationCall,
+  SignedUpdateFirmwareCall,
 } from './call.js';
 
 import type {
@@ -121,16 +154,27 @@ import type {
   TriggerMessageCallResult,
   UnlockConnectorCallResult,
   UpdateFirmwareCallResult,
+  CertificateSignedCallResult,
+  DeleteCertificateCallResult,
+  ExtendedTriggerMessageCallResult,
+  GetInstalledCertificateIdsCallResult,
+  GetLogCallResult,
+  InstallCertificateCallResult,
+  LogStatusNotificationCallResult,
+  SecurityEventNotificationCallResult,
+  SignCertificateCallResult,
+  SignedFirmwareStatusNotificationCallResult,
+  SignedUpdateFirmwareCallResult,
 } from './callresult.js';
 
 import type {
-  Context, 
-  Measurand, 
-  Phase, 
-  Location, 
-  Unit, 
-  Format, 
-  SampledValue, 
+  Context,
+  Measurand,
+  Phase,
+  Location,
+  Unit,
+  Format,
+  SampledValue,
   MeterValue,
   Status,
 } from './utils.js';
@@ -139,7 +183,7 @@ import type { Call } from './call.js';
 
 import type { CallError } from './callerror.js';
 
-import type { 
+import type {
   CallResult,
   CheckedCallResult,
   UncheckedCallResult,
@@ -190,6 +234,17 @@ export declare namespace OCPP16 {
     TriggerMessageCall,
     UnlockConnectorCall,
     UpdateFirmwareCall,
+    CertificateSignedCall,
+    DeleteCertificateCall,
+    ExtendedTriggerMessageCall,
+    GetInstalledCertificateIdsCall,
+    GetLogCall,
+    InstallCertificateCall,
+    LogStatusNotificationCall,
+    SecurityEventNotificationCall,
+    SignCertificateCall,
+    SignedFirmwareStatusNotificationCall,
+    SignedUpdateFirmwareCall,
   };
 
   export type {
@@ -221,6 +276,17 @@ export declare namespace OCPP16 {
     TriggerMessageCallResult,
     UnlockConnectorCallResult,
     UpdateFirmwareCallResult,
+    CertificateSignedCallResult,
+    DeleteCertificateCallResult,
+    ExtendedTriggerMessageCallResult,
+    GetInstalledCertificateIdsCallResult,
+    GetLogCallResult,
+    InstallCertificateCallResult,
+    LogStatusNotificationCallResult,
+    SecurityEventNotificationCallResult,
+    SignCertificateCallResult,
+    SignedFirmwareStatusNotificationCallResult,
+    SignedUpdateFirmwareCallResult,
   };
 
   export type {
@@ -252,6 +318,17 @@ export declare namespace OCPP16 {
     TriggerMessageRequest,
     UnlockConnectorRequest,
     UpdateFirmwareRequest,
+    CertificateSignedRequest,
+    DeleteCertificateRequest,
+    ExtendedTriggerMessageRequest,
+    GetInstalledCertificateIdsRequest,
+    GetLogRequest,
+    InstallCertificateRequest,
+    LogStatusNotificationRequest,
+    SecurityEventNotificationRequest,
+    SignCertificateRequest,
+    SignedFirmwareStatusNotificationRequest,
+    SignedUpdateFirmwareRequest,
   };
 
   export type {
@@ -283,16 +360,27 @@ export declare namespace OCPP16 {
     TriggerMessageResponse,
     UnlockConnectorResponse,
     UpdateFirmwareResponse,
+    CertificateSignedResponse,
+    DeleteCertificateResponse,
+    ExtendedTriggerMessageResponse,
+    GetInstalledCertificateIdsResponse,
+    GetLogResponse,
+    InstallCertificateResponse,
+    LogStatusNotificationResponse,
+    SecurityEventNotificationResponse,
+    SignCertificateResponse,
+    SignedFirmwareStatusNotificationResponse,
+    SignedUpdateFirmwareResponse,
   };
 
   export type {
-    Context, 
-    Measurand, 
-    Phase, 
-    Location, 
-    Unit, 
-    Format, 
-    SampledValue, 
+    Context,
+    Measurand,
+    Phase,
+    Location,
+    Unit,
+    Format,
+    SampledValue,
     MeterValue,
     Status,
   };
@@ -309,8 +397,8 @@ export declare namespace OCPP16 {
 
 export namespace OCPP16 {
 
-  export import MessageType = MessageType_; 
-  export import Action = Action_; 
+  export import MessageType = MessageType_;
+  export import Action = Action_;
   export import ErrorCode = ErrorCode_;
 
   export const checkCallResult = checkCallResult_;
@@ -366,4 +454,4 @@ export namespace OCPP16 {
     return msg[0] === MessageType_.CALLRESULT;
   };
 
-};
\ No newline at end of file
+};
diff --git a/src/ocpp16/utils.ts b/src/ocpp16/utils.ts
index 14a9a7a..9eb630a 100644
--- a/src/ocpp16/utils.ts
+++ b/src/ocpp16/utils.ts
@@ -29,7 +29,18 @@ export enum Action {
   StopTransaction = 'StopTransaction',
   TriggerMessage = 'TriggerMessage',
   UnlockConnector = 'UnlockConnector',
-  UpdateFirmware = 'UpdateFirmware'
+  UpdateFirmware = 'UpdateFirmware',
+  CertificateSigned = 'CertificateSigned',
+  DeleteCertificate = 'DeleteCertificate',
+  ExtendedTriggerMessage = 'ExtendedTriggerMessage',
+  GetInstalledCertificateIds = 'GetInstalledCertificateIds',
+  GetLog = 'GetLog',
+  InstallCertificate = 'InstallCertificate',
+  LogStatusNotification = 'LogStatusNotification',
+  SecurityEventNotification = 'SecurityEventNotification',
+  SignCertificate = 'SignCertificate',
+  SignedFirmwareStatusNotification = 'SignedFirmwareStatusNotification',
+  SignedUpdateFirmware = 'SignedUpdateFirmware',
 }
 
 export enum ErrorCode {