diff --git a/build/AssemblyRedirectionSourceGenerator.cs b/build/AssemblyRedirectionSourceGenerator.cs
index 96a5996ca..4e1140b8d 100644
--- a/build/AssemblyRedirectionSourceGenerator.cs
+++ b/build/AssemblyRedirectionSourceGenerator.cs
@@ -31,13 +31,20 @@ public class AssemblyRedirectionSourceGenerator
 
         var sourceContents = GenerateSourceContents(assemblies);
 
-        File.WriteAllText(generatedFilePath, sourceContents, Encoding.UTF8);
+        File.WriteAllText(generatedFilePath, sourceContents);
         Log.Information("Assembly redirection source generated {0}", generatedFilePath);
     }
 
     static string GenerateSourceContents(SortedDictionary<string, AssemblyNameDefinition> assemblies)
     {
         var sb = new StringBuilder(assemblies.Count * 256);
+        sb.AppendLine("""
+    /*
+     * Copyright The OpenTelemetry Authors
+     * SPDX-License-Identifier: Apache-2.0
+     */
+    """);
+        sb.AppendLine();
         sb.AppendLine($"// Auto-generated file, do not change it - generated by the {nameof(AssemblyRedirectionSourceGenerator)} type");
         sb.Append(@"
 #include ""cor_profiler.h""
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/CMakeLists.txt b/src/OpenTelemetry.AutoInstrumentation.Native/CMakeLists.txt
index e5dc67b1f..d76b31ca4 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/CMakeLists.txt
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/CMakeLists.txt
@@ -1,3 +1,6 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+
 cmake_minimum_required (VERSION 3.8..3.19)
 cmake_policy(SET CMP0015 NEW)
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/bytecode_instrumentations.h b/src/OpenTelemetry.AutoInstrumentation.Native/bytecode_instrumentations.h
index 2b2796b9d..8cf0a8c8f 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/bytecode_instrumentations.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/bytecode_instrumentations.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 // Auto-generated file, do not change it - generated by the IntegrationsJsonGenerator
 #ifndef BYTECODE_INSTRUMENTATIONS_H
 #define BYTECODE_INSTRUMENTATIONS_H
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/calltarget_tokens.cpp b/src/OpenTelemetry.AutoInstrumentation.Native/calltarget_tokens.cpp
index 126c7283d..18c0c1a87 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/calltarget_tokens.cpp
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/calltarget_tokens.cpp
@@ -1,3 +1,6 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
 #include "calltarget_tokens.h"
 
 #include "cor_profiler.h"
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/calltarget_tokens.h b/src/OpenTelemetry.AutoInstrumentation.Native/calltarget_tokens.h
index 2694df3c3..be5a53048 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/calltarget_tokens.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/calltarget_tokens.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_CALLTARGET_TOKENS_H_
 #define OTEL_CLR_PROFILER_CALLTARGET_TOKENS_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/clr_helpers.cpp b/src/OpenTelemetry.AutoInstrumentation.Native/clr_helpers.cpp
index 33f67fd78..46dc054a2 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/clr_helpers.cpp
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/clr_helpers.cpp
@@ -1,3 +1,6 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
 #include "clr_helpers.h"
 
 #include <cstring>
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/clr_helpers.h b/src/OpenTelemetry.AutoInstrumentation.Native/clr_helpers.h
index 74d4e17d8..0a4b1c00a 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/clr_helpers.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/clr_helpers.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_CLR_HELPERS_H_
 #define OTEL_CLR_PROFILER_CLR_HELPERS_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/com_ptr.h b/src/OpenTelemetry.AutoInstrumentation.Native/com_ptr.h
index 1665bbe4e..73956eaca 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/com_ptr.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/com_ptr.h
@@ -1,4 +1,9 @@
-#ifndef OTEL_CLR_PROFILER_COM_PTR_H_
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef OTEL_CLR_PROFILER_COM_PTR_H_
 #define OTEL_CLR_PROFILER_COM_PTR_H_
 
 #include <cassert>
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler.cpp b/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler.cpp
index 1521b387f..a82c50752 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler.cpp
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler.cpp
@@ -1,3 +1,6 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
 #include "cor_profiler.h"
 
 #include "corhlpr.h"
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler.h b/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler.h
index 9aba80005..ea1fa5d03 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_COR_PROFILER_H_
 #define OTEL_CLR_PROFILER_COR_PROFILER_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler_base.cpp b/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler_base.cpp
index 35a538056..76a01f9e1 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler_base.cpp
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler_base.cpp
@@ -1,4 +1,7 @@
-#include "cor_profiler_base.h"
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+#include "cor_profiler_base.h"
 #include "logger.h"
 
 namespace trace
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler_base.h b/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler_base.h
index a0e08e580..570801df7 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler_base.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/cor_profiler_base.h
@@ -1,4 +1,9 @@
-#ifndef OTEL_CLR_PROFILER_COR_PROFILER_BASE_H_
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef OTEL_CLR_PROFILER_COR_PROFILER_BASE_H_
 #define OTEL_CLR_PROFILER_COR_PROFILER_BASE_H_
 
 #include <atomic>
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/dllmain.h b/src/OpenTelemetry.AutoInstrumentation.Native/dllmain.h
index eb924982e..aa2c12eb6 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/dllmain.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/dllmain.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_DLLMAIN_H_
 #define OTEL_CLR_PROFILER_DLLMAIN_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/environment_variables.h b/src/OpenTelemetry.AutoInstrumentation.Native/environment_variables.h
index b5fee2336..07deb7fcf 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/environment_variables.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/environment_variables.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_ENVIRONMENT_VARIABLES_H_
 #define OTEL_CLR_PROFILER_ENVIRONMENT_VARIABLES_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/environment_variables_parser.h b/src/OpenTelemetry.AutoInstrumentation.Native/environment_variables_parser.h
index 7d9cc7ab0..0832b6e21 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/environment_variables_parser.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/environment_variables_parser.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_ENVIRONMENT_VARIABLES_PARSER_H_
 #define OTEL_CLR_PROFILER_ENVIRONMENT_VARIABLES_PARSER_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/environment_variables_util.h b/src/OpenTelemetry.AutoInstrumentation.Native/environment_variables_util.h
index 32f69b9c7..20bd4db78 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/environment_variables_util.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/environment_variables_util.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_ENVIRONMENT_VARIABLES_UTIL_H_
 #define OTEL_CLR_PROFILER_ENVIRONMENT_VARIABLES_UTIL_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/il_rewriter_wrapper.cpp b/src/OpenTelemetry.AutoInstrumentation.Native/il_rewriter_wrapper.cpp
index 2aa8fd12b..34efb198a 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/il_rewriter_wrapper.cpp
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/il_rewriter_wrapper.cpp
@@ -1,3 +1,6 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
 #include "il_rewriter_wrapper.h"
 
 ILRewriter* ILRewriterWrapper::GetILRewriter() const
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/il_rewriter_wrapper.h b/src/OpenTelemetry.AutoInstrumentation.Native/il_rewriter_wrapper.h
index ee87a6c8a..1d903c13f 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/il_rewriter_wrapper.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/il_rewriter_wrapper.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_IL_REWRITER_WRAPPER_H_
 #define OTEL_CLR_PROFILER_IL_REWRITER_WRAPPER_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/integration.cpp b/src/OpenTelemetry.AutoInstrumentation.Native/integration.cpp
index d4f5f5a41..b02317a27 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/integration.cpp
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/integration.cpp
@@ -1,3 +1,5 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
 
 #include "integration.h"
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/integration.h b/src/OpenTelemetry.AutoInstrumentation.Native/integration.h
index afaee64ba..a0993a84f 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/integration.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/integration.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_INTEGRATION_H_
 #define OTEL_CLR_PROFILER_INTEGRATION_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/integration_loader.cpp b/src/OpenTelemetry.AutoInstrumentation.Native/integration_loader.cpp
index 3f41e80bb..e7836d598 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/integration_loader.cpp
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/integration_loader.cpp
@@ -1,3 +1,6 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
 #include "integration_loader.h"
 
 #include <exception>
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/integration_loader.h b/src/OpenTelemetry.AutoInstrumentation.Native/integration_loader.h
index 22f872185..fcab59b95 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/integration_loader.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/integration_loader.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_INTEGRATION_LOADER_H_
 #define OTEL_CLR_PROFILER_INTEGRATION_LOADER_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/interop.cpp b/src/OpenTelemetry.AutoInstrumentation.Native/interop.cpp
index 39b6abb27..152efa363 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/interop.cpp
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/interop.cpp
@@ -1,3 +1,6 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
 //---------------------------------------------------------------------------------------
 // Exports that managed code from OpenTelemetry.AutoInstrumentation.dll will
 // P/Invoke into
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/logger.h b/src/OpenTelemetry.AutoInstrumentation.Native/logger.h
index 360b89e50..bef427273 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/logger.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/logger.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #pragma once
 
 #include "environment_variables.h"
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/logger_impl.h b/src/OpenTelemetry.AutoInstrumentation.Native/logger_impl.h
index efc106d86..aee59425e 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/logger_impl.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/logger_impl.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_LOGGER_IMPL_H_
 #define OTEL_CLR_PROFILER_LOGGER_IMPL_H_
 #include "util.h"
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/logging.cpp b/src/OpenTelemetry.AutoInstrumentation.Native/logging.cpp
index b52611274..fb631f94c 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/logging.cpp
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/logging.cpp
@@ -1,3 +1,6 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
 #include "logging.h"
 
 #include "pal.h"
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/logging.h b/src/OpenTelemetry.AutoInstrumentation.Native/logging.h
index dabd7ec8c..517a58777 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/logging.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/logging.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_LOGGING_H_
 #define OTEL_CLR_PROFILER_LOGGING_H_
 #include "util.h"
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/macros.h b/src/OpenTelemetry.AutoInstrumentation.Native/macros.h
index 5181c3e73..af5de7e6d 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/macros.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/macros.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_MACROS_H_
 #define OTEL_CLR_PROFILER_MACROS_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/metadata_builder.cpp b/src/OpenTelemetry.AutoInstrumentation.Native/metadata_builder.cpp
index 0377db032..2b3388c45 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/metadata_builder.cpp
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/metadata_builder.cpp
@@ -1,4 +1,7 @@
-#include <fstream>
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+#include <fstream>
 #include <string>
 
 #include "clr_helpers.h"
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/metadata_builder.h b/src/OpenTelemetry.AutoInstrumentation.Native/metadata_builder.h
index 3695d7327..33e99c532 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/metadata_builder.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/metadata_builder.h
@@ -1,4 +1,9 @@
-#pragma once
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
 
 #include <corhlpr.h>
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/miniutfdata.h b/src/OpenTelemetry.AutoInstrumentation.Native/miniutfdata.h
index 7005f44a1..a3a5bd293 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/miniutfdata.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/miniutfdata.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 static const uint32_t xref[] = {
     0,      59,     60,     61,     62,     65,     66,     67,     68,     69,     70,     71,     72,     73,
     74,     75,     76,     77,     78,     79,     80,     82,     83,     84,     85,     86,     87,     88,
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/module_metadata.h b/src/OpenTelemetry.AutoInstrumentation.Native/module_metadata.h
index a518d3fc4..28a16b07e 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/module_metadata.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/module_metadata.h
@@ -1,4 +1,9 @@
-#ifndef OTEL_CLR_PROFILER_MODULE_METADATA_H_
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef OTEL_CLR_PROFILER_MODULE_METADATA_H_
 #define OTEL_CLR_PROFILER_MODULE_METADATA_H_
 
 #include <corhlpr.h>
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/netfx_assembly_redirection.h b/src/OpenTelemetry.AutoInstrumentation.Native/netfx_assembly_redirection.h
index d4f3cbf65..8b3640e0e 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/netfx_assembly_redirection.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/netfx_assembly_redirection.h
@@ -1,4 +1,9 @@
-// Auto-generated file, do not change it - generated by the AssemblyRedirectionSourceGenerator type
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+// Auto-generated file, do not change it - generated by the AssemblyRedirectionSourceGenerator type
 
 #include "cor_profiler.h"
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/otel_profiler_constants.h b/src/OpenTelemetry.AutoInstrumentation.Native/otel_profiler_constants.h
index 4aacd6e10..35aa32361 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/otel_profiler_constants.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/otel_profiler_constants.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_PROFILER_CONSTANTS_H
 #define OTEL_PROFILER_CONSTANTS_H
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/pal.h b/src/OpenTelemetry.AutoInstrumentation.Native/pal.h
index a7b3e62fb..3f4c28245 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/pal.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/pal.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_PAL_H_
 #define OTEL_CLR_PROFILER_PAL_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/rejit_handler.cpp b/src/OpenTelemetry.AutoInstrumentation.Native/rejit_handler.cpp
index 9ada0c440..8f36779da 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/rejit_handler.cpp
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/rejit_handler.cpp
@@ -1,3 +1,6 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
 #include "rejit_handler.h"
 
 #include "logger.h"
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/rejit_handler.h b/src/OpenTelemetry.AutoInstrumentation.Native/rejit_handler.h
index 61e6f2cb0..3e5181d42 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/rejit_handler.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/rejit_handler.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_REJIT_HANDLER_H_
 #define OTEL_CLR_PROFILER_REJIT_HANDLER_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/resource.h b/src/OpenTelemetry.AutoInstrumentation.Native/resource.h
index 9e7d419ec..1a65669ba 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/resource.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/resource.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 //{{NO_DEPENDENCIES}}
 // Microsoft Visual C++ generated include file.
 // Used by Resource.rc
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/startup_hook.h b/src/OpenTelemetry.AutoInstrumentation.Native/startup_hook.h
index 1b1e5276c..a08c3d185 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/startup_hook.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/startup_hook.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_STARTUP_HOOK_H_
 #define OTEL_CLR_PROFILER_STARTUP_HOOK_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/stats.h b/src/OpenTelemetry.AutoInstrumentation.Native/stats.h
index 4e99b8ed7..f8e8c01f0 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/stats.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/stats.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_STATS_H_
 #define OTEL_CLR_PROFILER_STATS_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/string.cpp b/src/OpenTelemetry.AutoInstrumentation.Native/string.cpp
index 965596afb..55399f9dd 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/string.cpp
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/string.cpp
@@ -1,3 +1,6 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
 #include "string.h"
 #ifdef _WIN32
 #include <Windows.h>
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/string.h b/src/OpenTelemetry.AutoInstrumentation.Native/string.h
index 03ba33d14..f190ac103 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/string.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/string.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_STRING_H_
 #define OTEL_CLR_PROFILER_STRING_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/util.cpp b/src/OpenTelemetry.AutoInstrumentation.Native/util.cpp
index ac20beb4a..07bf82a93 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/util.cpp
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/util.cpp
@@ -1,3 +1,6 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
 #include "util.h" // Keep first to avoid PCH warning.
 
 #include <cwctype>
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/util.h b/src/OpenTelemetry.AutoInstrumentation.Native/util.h
index 2dbca03e9..8c78dbc2d 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/util.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/util.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef OTEL_CLR_PROFILER_UTIL_H_
 #define OTEL_CLR_PROFILER_UTIL_H_
 
diff --git a/src/OpenTelemetry.AutoInstrumentation.Native/version.h b/src/OpenTelemetry.AutoInstrumentation.Native/version.h
index 48bee3ada..12f4032a2 100644
--- a/src/OpenTelemetry.AutoInstrumentation.Native/version.h
+++ b/src/OpenTelemetry.AutoInstrumentation.Native/version.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #pragma once
 
 constexpr auto PROFILER_VERSION = "0.6.0-beta.2";
diff --git a/tools/IntegrationsJsonGenerator/Program.cs b/tools/IntegrationsJsonGenerator/Program.cs
index b70e598be..584d640dd 100644
--- a/tools/IntegrationsJsonGenerator/Program.cs
+++ b/tools/IntegrationsJsonGenerator/Program.cs
@@ -179,6 +179,13 @@ void UpdateNativeInstrumentationFile(string filePath, Dictionary<string, List<st
     using var fileStream = new FileStream(filePath, FileMode.Truncate);
 
     using var writer = new StreamWriter(fileStream);
+    writer.WriteLine("""
+    /*
+     * Copyright The OpenTelemetry Authors
+     * SPDX-License-Identifier: Apache-2.0
+     */
+    """);
+    writer.WriteLine();
     writer.WriteLine($"// Auto-generated file, do not change it - generated by the {nameof(IntegrationsJsonGenerator)}");
     writer.WriteLine("#ifndef BYTECODE_INSTRUMENTATIONS_H");
     writer.WriteLine("#define BYTECODE_INSTRUMENTATIONS_H");