diff --git a/GOVERNANCE.adoc b/GOVERNANCE.adoc
index 8bbf167..e41020d 100644
--- a/GOVERNANCE.adoc
+++ b/GOVERNANCE.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Governance Model
 :toc: preamble
diff --git a/LICENSE b/LICENSE
index 72a0561..14e2f77 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,3 @@
-SPDX-License-Identifier: MPL-2.0
-SPDX-FileCopyrightText: 2024-2026 Jonathan D.A. Jewell (hyperpolymath)
-
 Mozilla Public License Version 2.0
 ==================================
 
diff --git a/MAINTAINERS.adoc b/MAINTAINERS.adoc
index 9910dd8..daf8a78 100644
--- a/MAINTAINERS.adoc
+++ b/MAINTAINERS.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Maintainers
 :toc: preamble
diff --git a/QUICKSTART-DEV.adoc b/QUICKSTART-DEV.adoc
index 3a23867..48ae137 100644
--- a/QUICKSTART-DEV.adoc
+++ b/QUICKSTART-DEV.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Git Reticulator — Developer Quickstart
 :toc: preamble
diff --git a/QUICKSTART-MAINTAINER.adoc b/QUICKSTART-MAINTAINER.adoc
index 678d37d..fc23995 100644
--- a/QUICKSTART-MAINTAINER.adoc
+++ b/QUICKSTART-MAINTAINER.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Git Reticulator — Maintainer Quickstart
 :toc: preamble
diff --git a/QUICKSTART-USER.adoc b/QUICKSTART-USER.adoc
index 606237b..2a7a229 100644
--- a/QUICKSTART-USER.adoc
+++ b/QUICKSTART-USER.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Git Reticulator — User Quickstart
 :toc: preamble
diff --git a/TEST-NEEDS.md b/TEST-NEEDS.md
index 4fa8ab0..8822a6f 100644
--- a/TEST-NEEDS.md
+++ b/TEST-NEEDS.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # TEST-NEEDS — git-reticulator
diff --git a/docs/setup.md b/docs/setup.md
index cc19e81..465fefe 100644
--- a/docs/setup.md
+++ b/docs/setup.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Git-Reticulator: Database Setup
diff --git a/llm-warmup-dev.md b/llm-warmup-dev.md
index ee2799b..cceb706 100644
--- a/llm-warmup-dev.md
+++ b/llm-warmup-dev.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # LLM Warmup — git-reticulator (Developer)
diff --git a/llm-warmup-user.md b/llm-warmup-user.md
index ab98b74..7810e05 100644
--- a/llm-warmup-user.md
+++ b/llm-warmup-user.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # LLM Warmup — git-reticulator (User)