diff --git a/build.ps1 b/build.ps1
index 87370b8..72d663e 100644
--- a/build.ps1
+++ b/build.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 param(
    [Parameter()]
    [string]
diff --git a/src/CloudEventsPowerShell/CloudEvents.Sdk.psd1 b/src/CloudEventsPowerShell/CloudEvents.Sdk.psd1
index 783b80d..281286d 100644
--- a/src/CloudEventsPowerShell/CloudEvents.Sdk.psd1
+++ b/src/CloudEventsPowerShell/CloudEvents.Sdk.psd1
@@ -1,3 +1,7 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
 
 @{
 
@@ -20,7 +24,7 @@ Author = 'dmilov'
 CompanyName = 'The CloudEvents Authors'
 
 # Copyright statement for this module
-Copyright = '(c) The CloudEvents Authors
+Copyright = '(c) The CloudEvents Authors'
 
 # Description of the functionality provided by this module
 Description = 'PowerShell CloudEvents SDK'
diff --git a/src/CloudEventsPowerShell/CloudEvents.Sdk.psm1 b/src/CloudEventsPowerShell/CloudEvents.Sdk.psm1
index 1b959d9..7ff4540 100644
--- a/src/CloudEventsPowerShell/CloudEvents.Sdk.psm1
+++ b/src/CloudEventsPowerShell/CloudEvents.Sdk.psm1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 $xmlDataSerilizationLibPath = Join-Path (Join-Path $PSScriptRoot 'dataserialization') 'xml.ps1'
 . $xmlDataSerilizationLibPath
 
diff --git a/src/CloudEventsPowerShell/CloudEventsPowerShell.csproj b/src/CloudEventsPowerShell/CloudEventsPowerShell.csproj
index 9235420..645a1b1 100644
--- a/src/CloudEventsPowerShell/CloudEventsPowerShell.csproj
+++ b/src/CloudEventsPowerShell/CloudEventsPowerShell.csproj
@@ -1,3 +1,8 @@
+<!--
+  Copyright (c) Cloud Native Foundation.
+  SPDX-License-Identifier: Apache-2.0
+-->
+
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
diff --git a/src/CloudEventsPowerShell/dataserialization/xml.Tests.ps1 b/src/CloudEventsPowerShell/dataserialization/xml.Tests.ps1
index df51aad..c168f8e 100644
--- a/src/CloudEventsPowerShell/dataserialization/xml.Tests.ps1
+++ b/src/CloudEventsPowerShell/dataserialization/xml.Tests.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 BeforeAll {
     . $PSCommandPath.Replace('.Tests.ps1', '.ps1')
 }
diff --git a/src/CloudEventsPowerShell/dataserialization/xml.ps1 b/src/CloudEventsPowerShell/dataserialization/xml.ps1
index a4022b5..2f74ca7 100644
--- a/src/CloudEventsPowerShell/dataserialization/xml.ps1
+++ b/src/CloudEventsPowerShell/dataserialization/xml.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 $SKIPATTR = "SkipAttributes"
 $ALWAYSATTRVALUE = "AlwaysAttrValue"
 $ATTRVALUEFORELEMENTSWITHATTR = "AttrValueWhenAttributes"
diff --git a/test/RunTests.ps1 b/test/RunTests.ps1
index 0d9cac7..543829a 100644
--- a/test/RunTests.ps1
+++ b/test/RunTests.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 param(
    [Parameter()]
    [ValidateScript({Test-Path $_})]
diff --git a/test/integration/HttpIntegration.Tests.ps1 b/test/integration/HttpIntegration.Tests.ps1
index 18f9f7f..357dc91 100644
--- a/test/integration/HttpIntegration.Tests.ps1
+++ b/test/integration/HttpIntegration.Tests.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 param(
    [Parameter()]
    [ValidateScript({Test-Path $_})]
diff --git a/test/integration/HttpServer.ps1 b/test/integration/HttpServer.ps1
index ced4987..d877444 100644
--- a/test/integration/HttpServer.ps1
+++ b/test/integration/HttpServer.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 param(
    [Parameter(Mandatory = $true)]
    [ValidateScript({Test-Path $_})]
diff --git a/test/integration/ProtocolConstants.ps1 b/test/integration/ProtocolConstants.ps1
index 839fa8f..45b9400 100644
--- a/test/integration/ProtocolConstants.ps1
+++ b/test/integration/ProtocolConstants.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 New-Variable -Option Constant -Scope 'script' -Name 'ClientSource' -Value 'ps:test:client'
 New-Variable -Option Constant -Scope 'script' -Name 'ServerSource' -Value 'ps:test:server'
 New-Variable -Option Constant -Scope 'script' -Name 'EchoBinaryType' -Value 'echo-binary'
diff --git a/test/unit/Add-CloudEventData.Tests.ps1 b/test/unit/Add-CloudEventData.Tests.ps1
index 18c4180..16efd85 100644
--- a/test/unit/Add-CloudEventData.Tests.ps1
+++ b/test/unit/Add-CloudEventData.Tests.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 Describe "Add-CloudEventData Function Tests" {
    Context "Adds Data" {
       It 'Adds byte[] data' {
diff --git a/test/unit/Add-CloudEventJsonData.Tests.ps1 b/test/unit/Add-CloudEventJsonData.Tests.ps1
index 1eb940a..edb1a60 100644
--- a/test/unit/Add-CloudEventJsonData.Tests.ps1
+++ b/test/unit/Add-CloudEventJsonData.Tests.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 Describe "Add-CloudEventJsonData Function Tests" {
    Context "Adds Json Data" {
       It 'Adds json data with depth 1' {
diff --git a/test/unit/Add-CloudEventXmlData.Tests.ps1 b/test/unit/Add-CloudEventXmlData.Tests.ps1
index 6d189e1..df6c081 100644
--- a/test/unit/Add-CloudEventXmlData.Tests.ps1
+++ b/test/unit/Add-CloudEventXmlData.Tests.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 Describe "Add-CloudEventXmlData Function Tests" {
    Context "Adds Xml Data" {
       It 'Adds xml data with depth 1' {
diff --git a/test/unit/ConvertFrom-HttpMessage.Tests.ps1 b/test/unit/ConvertFrom-HttpMessage.Tests.ps1
index cb76ae4..145338f 100644
--- a/test/unit/ConvertFrom-HttpMessage.Tests.ps1
+++ b/test/unit/ConvertFrom-HttpMessage.Tests.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 Describe "ConvertFrom-HttpMessage Function Tests" {
    BeforeAll {
       $expectedSpecVersion = '1.0'
diff --git a/test/unit/ConvertTo-HttpMessage.Tests.ps1 b/test/unit/ConvertTo-HttpMessage.Tests.ps1
index c57f42e..0927a0f 100644
--- a/test/unit/ConvertTo-HttpMessage.Tests.ps1
+++ b/test/unit/ConvertTo-HttpMessage.Tests.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 Describe "ConvertTo-HttpMessage Function Tests" {
    BeforeAll {
       $expectedSpecVersion = '1.0'
diff --git a/test/unit/New-CloudEvent.Tests.ps1 b/test/unit/New-CloudEvent.Tests.ps1
index 4bc27d1..be1e9b2 100644
--- a/test/unit/New-CloudEvent.Tests.ps1
+++ b/test/unit/New-CloudEvent.Tests.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 Describe "New-CloudEvent Function Tests" {
    Context "Create CloudEvent Object" {
       It 'Create CloudEvent with required parameters only' {
diff --git a/test/unit/Read-CloudEventData.Tests.ps1 b/test/unit/Read-CloudEventData.Tests.ps1
index 2641f70..ca7aeae 100644
--- a/test/unit/Read-CloudEventData.Tests.ps1
+++ b/test/unit/Read-CloudEventData.Tests.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 Describe "Read-CloudEventData Function Tests" {
    Context "Extracts Data from CloudEvent" {
       It 'Reads xml text data' {
diff --git a/test/unit/Read-CloudEventJsonData.Tests.ps1 b/test/unit/Read-CloudEventJsonData.Tests.ps1
index 9d6d5d2..4c10e5b 100644
--- a/test/unit/Read-CloudEventJsonData.Tests.ps1
+++ b/test/unit/Read-CloudEventJsonData.Tests.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 Describe "Read-CloudEventJsonData Function Tests" {
    Context "Extracts Json Data from CloudEvent" {
       It 'Extracts hashtable from CloudEvent with json data' {
diff --git a/test/unit/Read-CloudEventXmlData.Tests.ps1 b/test/unit/Read-CloudEventXmlData.Tests.ps1
index f74ddde..f2a4e80 100644
--- a/test/unit/Read-CloudEventXmlData.Tests.ps1
+++ b/test/unit/Read-CloudEventXmlData.Tests.ps1
@@ -1,3 +1,8 @@
+# **************************************************************************
+#  Copyright (c) Cloud Native Foundation.
+#  SPDX-License-Identifier: Apache-2.0
+# **************************************************************************
+
 Describe "Read-CloudEventXmlData Function Tests" {
    Context "Extracts Xml Data from CloudEvent" {
       It 'Extracts hashtable from CloudEvent with xml data' {