diff --git a/.github/workflows/governance-reusable.yml b/.github/workflows/governance-reusable.yml
index e429e34d..56fc21d5 100644
--- a/.github/workflows/governance-reusable.yml
+++ b/.github/workflows/governance-reusable.yml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 # Governance checks for hyperpolymath repositories — Reusable Workflow
 name: Governance Reusable Workflow
 
diff --git a/.github/workflows/governance.yml b/.github/workflows/governance.yml
index e5b65041..884cf8be 100644
--- a/.github/workflows/governance.yml
+++ b/.github/workflows/governance.yml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 name: Governance
 
 on:
diff --git a/.github/workflows/hypatia-scan-reusable.yml b/.github/workflows/hypatia-scan-reusable.yml
index c57c8210..3749bbe3 100644
--- a/.github/workflows/hypatia-scan-reusable.yml
+++ b/.github/workflows/hypatia-scan-reusable.yml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 # Hypatia Neurosymbolic CI/CD Security Scan — Reusable Workflow
 name: Hypatia Reusable Scan
 
diff --git a/.github/workflows/hypatia-scan.yml b/.github/workflows/hypatia-scan.yml
index d3b5e9e2..ee95c17b 100644
--- a/.github/workflows/hypatia-scan.yml
+++ b/.github/workflows/hypatia-scan.yml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 name: Hypatia Security Scan
 
 on:
diff --git a/.github/workflows/scorecard-enforcer.yml b/.github/workflows/scorecard-enforcer.yml
index 77449716..212cb1b2 100644
--- a/.github/workflows/scorecard-enforcer.yml
+++ b/.github/workflows/scorecard-enforcer.yml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 # Prevention workflow - runs OpenSSF Scorecard and fails on low scores
 name: OpenSSF Scorecard Enforcer
 
diff --git a/.github/workflows/scorecard-reusable.yml b/.github/workflows/scorecard-reusable.yml
index 36ed5f55..b3e8cc38 100644
--- a/.github/workflows/scorecard-reusable.yml
+++ b/.github/workflows/scorecard-reusable.yml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 name: OSSF Scorecard Reusable Workflow
 
 on:
diff --git a/scripts/check-workflow-staleness.sh b/scripts/check-workflow-staleness.sh
index 1592791b..98615852 100755
--- a/scripts/check-workflow-staleness.sh
+++ b/scripts/check-workflow-staleness.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 set -eo pipefail
 
 # Staleness checker script for hyperpolymath estate repositories.
diff --git a/scripts/tests/check-workflow-staleness-test.sh b/scripts/tests/check-workflow-staleness-test.sh
index eefac226..145e7ba5 100755
--- a/scripts/tests/check-workflow-staleness-test.sh
+++ b/scripts/tests/check-workflow-staleness-test.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 set -euo pipefail
 
 # Regression test for check-workflow-staleness.sh (recency-window model).