diff --git a/_config.yml b/_config.yml
index 14381883..f2f6049b 100644
--- a/_config.yml
+++ b/_config.yml
@@ -77,3 +77,4 @@ sphinx:
       footer_start:
         - footer-logos
         - footer-info
+        - footer-extra
diff --git a/_static/footer-logo-nsf.png b/_static/footer-logo-nsf.png
new file mode 100644
index 00000000..11c788f2
Binary files /dev/null and b/_static/footer-logo-nsf.png differ
diff --git a/_templates/footer-extra.html b/_templates/footer-extra.html
new file mode 100644
index 00000000..2b794d89
--- /dev/null
+++ b/_templates/footer-extra.html
@@ -0,0 +1,27 @@
+<div class="container-fluid footer-extra">
+  <div class="container">
+    <center>
+      Theme by <a href="https://projectpythia.org">Project Pythia</a>. All code
+      in Pythia Cookbooks is licensed under
+      <a href="https://opensource.org/license/apache-2-0">Apache 2.0</a>. All
+      other non-code content is licensed under
+      <a href="https://creativecommons.org/licenses/by/4.0/">
+        Creative Commons BY 4.0 (CC BY 4.0)</a
+      >.
+    </center>
+    <br /><br />
+    <div class="row">
+      <p class="m-0">
+        <img
+          src="{{ pathto('_static/footer-logo-nsf.png', 1) }}"
+          style="float: left; width: 60px; height: 60px; margin-right: 1rem"
+        />
+        This material is based upon work supported by the National Science
+        Foundation under Grant Nos. 2026863 and 2026899. Any opinions, findings,
+        and conclusions or recommendations expressed in this material are those
+        of the author(s) and do not necessarily reflect the views of the
+        National Science Foundation.
+      </p>
+    </div>
+  </div>
+</div>