diff --git a/example/build_flex.py b/example/build_flex.py
index 80847e3..23ff90a 100755
--- a/example/build_flex.py
+++ b/example/build_flex.py
@@ -2,7 +2,10 @@
 """
 An example of cloning, configuring, building, and installing software.
 
-Copyright The shell-logger Authors.
+© 2024 National Technology & Engineering Solutions of Sandia, LLC
+(NTESS).  Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
+Government retains certain rights in this software.
+
 SPDX-License-Identifier: BSD-3-Clause
 """
 from pathlib import Path
diff --git a/example/hello_world_html.py b/example/hello_world_html.py
index 5930b8f..89ae5b9 100755
--- a/example/hello_world_html.py
+++ b/example/hello_world_html.py
@@ -2,7 +2,10 @@
 """
 A simple example.
 
-Copyright The shell-logger Authors.
+© 2024 National Technology & Engineering Solutions of Sandia, LLC
+(NTESS).  Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
+Government retains certain rights in this software.
+
 SPDX-License-Identifier: BSD-3-Clause
 """
 from pathlib import Path
diff --git a/example/hello_world_html_and_console.py b/example/hello_world_html_and_console.py
index 90164c7..8b28330 100755
--- a/example/hello_world_html_and_console.py
+++ b/example/hello_world_html_and_console.py
@@ -2,7 +2,10 @@
 """
 A simple example, sending output to the log file and console.
 
-Copyright The shell-logger Authors.
+© 2024 National Technology & Engineering Solutions of Sandia, LLC
+(NTESS).  Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
+Government retains certain rights in this software.
+
 SPDX-License-Identifier: BSD-3-Clause
 """
 from pathlib import Path
diff --git a/example/hello_world_html_with_stats.py b/example/hello_world_html_with_stats.py
index e735fba..369bc7b 100755
--- a/example/hello_world_html_with_stats.py
+++ b/example/hello_world_html_with_stats.py
@@ -2,7 +2,10 @@
 """
 A simple example, capturing various system statistics.
 
-Copyright The shell-logger Authors.
+© 2024 National Technology & Engineering Solutions of Sandia, LLC
+(NTESS).  Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
+Government retains certain rights in this software.
+
 SPDX-License-Identifier: BSD-3-Clause
 """
 from pathlib import Path
diff --git a/setup.py b/setup.py
index 47486bc..6c48563 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,13 @@
 #!/usr/bin/env python3
 """
-Copyright The shell-logger Authors.
+Setup file for the ``shell-logger`` package.
+
+To install, simply ``python3 -m pip install .`` in the repository root.
+
+© 2024 National Technology & Engineering Solutions of Sandia, LLC
+(NTESS).  Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
+Government retains certain rights in this software.
+
 SPDX-License-Identifier: BSD-3-Clause
 """
 import setuptools
diff --git a/shell_logger/__init__.py b/shell_logger/__init__.py
index a7d11d0..fe570bf 100644
--- a/shell_logger/__init__.py
+++ b/shell_logger/__init__.py
@@ -1,7 +1,10 @@
 """
 The ``shell_logger`` package.
 
-Copyright The shell-logger Authors.
+© 2024 National Technology & Engineering Solutions of Sandia, LLC
+(NTESS).  Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
+Government retains certain rights in this software.
+
 SPDX-License-Identifier: BSD-3-Clause
 """
 from .shell_logger import ShellLogger, ShellLoggerDecoder, ShellLoggerEncoder
diff --git a/shell_logger/abstract_method.py b/shell_logger/abstract_method.py
index 23f454d..a2fa94e 100644
--- a/shell_logger/abstract_method.py
+++ b/shell_logger/abstract_method.py
@@ -2,7 +2,10 @@
 """
 Provides the :class:`AbstractMethod` exception.
 
-Copyright The shell-logger Authors.
+© 2024 National Technology & Engineering Solutions of Sandia, LLC
+(NTESS).  Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
+Government retains certain rights in this software.
+
 SPDX-License-Identifier: BSD-3-Clause
 """
 import inspect
diff --git a/shell_logger/html_utilities.py b/shell_logger/html_utilities.py
index 5e2056c..5b0b2d8 100644
--- a/shell_logger/html_utilities.py
+++ b/shell_logger/html_utilities.py
@@ -2,7 +2,10 @@
 """
 Various utitlities for building the HTML log file.
 
-Copyright The shell-logger Authors.
+© 2024 National Technology & Engineering Solutions of Sandia, LLC
+(NTESS).  Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
+Government retains certain rights in this software.
+
 SPDX-License-Identifier: BSD-3-Clause
 """
 from collections.abc import Iterable, Mapping
diff --git a/shell_logger/shell.py b/shell_logger/shell.py
index c60ed82..8872d07 100644
--- a/shell_logger/shell.py
+++ b/shell_logger/shell.py
@@ -2,7 +2,10 @@
 """
 Provides the :class:`Shell` class.
 
-Copyright The shell-logger Authors.
+© 2024 National Technology & Engineering Solutions of Sandia, LLC
+(NTESS).  Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
+Government retains certain rights in this software.
+
 SPDX-License-Identifier: BSD-3-Clause
 """
 from __future__ import annotations
diff --git a/shell_logger/shell_logger.py b/shell_logger/shell_logger.py
index 58c01b1..6e9e273 100644
--- a/shell_logger/shell_logger.py
+++ b/shell_logger/shell_logger.py
@@ -2,7 +2,10 @@
 """
 Provides the :class:`ShellLogger` class, along with some helpers.
 
-Copyright The shell-logger Authors.
+© 2024 National Technology & Engineering Solutions of Sandia, LLC
+(NTESS).  Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
+Government retains certain rights in this software.
+
 SPDX-License-Identifier: BSD-3-Clause
 """
 from __future__ import annotations
diff --git a/shell_logger/stats_collector.py b/shell_logger/stats_collector.py
index e7df29e..7bb0438 100644
--- a/shell_logger/stats_collector.py
+++ b/shell_logger/stats_collector.py
@@ -2,7 +2,10 @@
 """
 Provides the various means of collecting machine statistics.
 
-Copyright The shell-logger Authors.
+© 2024 National Technology & Engineering Solutions of Sandia, LLC
+(NTESS).  Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
+Government retains certain rights in this software.
+
 SPDX-License-Identifier: BSD-3-Clause
 """
 from __future__ import annotations
diff --git a/shell_logger/trace.py b/shell_logger/trace.py
index ab10dac..dd0e4b4 100644
--- a/shell_logger/trace.py
+++ b/shell_logger/trace.py
@@ -2,7 +2,10 @@
 """
 Provides the means of collecting various trace data.
 
-Copyright The shell-logger Authors.
+© 2024 National Technology & Engineering Solutions of Sandia, LLC
+(NTESS).  Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
+Government retains certain rights in this software.
+
 SPDX-License-Identifier: BSD-3-Clause
 """
 from __future__ import annotations
diff --git a/test/test_shell_logger.py b/test/test_shell_logger.py
index bf362ce..beaa067 100644
--- a/test/test_shell_logger.py
+++ b/test/test_shell_logger.py
@@ -1,7 +1,10 @@
 """
 The unit test suite for the ``shell_logger`` package.
 
-Copyright The shell-logger Authors.
+© 2024 National Technology & Engineering Solutions of Sandia, LLC
+(NTESS).  Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
+Government retains certain rights in this software.
+
 SPDX-License-Identifier: BSD-3-Clause
 """
 from _pytest.capture import CaptureFixture