diff --git a/LICENSE.md b/LICENSE.md
index c6c289f..1d23435 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,10 +1,19 @@
-# GNU Affero General Public License v3.0
+# TRIA SDK License
 
-TRIA SDK is licensed under the **GNU Affero General Public License v3.0 only (AGPL-3.0-only)**.
+Copyright © 2026 Trivian Institute.
 
-Copyright © 2026 Sarasha Elion / Trivian Institute.
+TRIA SDK is made available for noncommercial use under the **PolyForm Noncommercial License 1.0.0**.
 
-The full license terms are available from the Free Software Foundation at:
-https://www.gnu.org/licenses/agpl-3.0.html
+The controlling license terms are published by the PolyForm Project at:
 
-SPDX-License-Identifier: AGPL-3.0-only
+https://polyformproject.org/licenses/noncommercial/1.0.0/
+
+Under those terms, noncommercial purposes are permitted, including qualifying personal research, experiment, testing, study, educational use, and use by qualifying noncommercial organizations.
+
+**Commercial use is not permitted under this license.** Any commercial use, commercial deployment, incorporation into a commercial product or service, or use on behalf of a for-profit business requires a separate written commercial license from **Trivian Institute**.
+
+For commercial licensing inquiries, contact Trivian Institute through its official channels.
+
+Required Notice: Copyright © 2026 Trivian Institute.
+
+SPDX-License-Identifier: PolyForm-Noncommercial-1.0.0
diff --git a/README.md b/README.md
index ea94d23..26911a9 100644
--- a/README.md
+++ b/README.md
@@ -152,6 +152,10 @@ The canonical architectural baseline is in [`docs/TRIA_CORE_SPEC_v0.1.1.md`](doc
 
 ## License
 
-TRIA SDK is licensed under the **GNU Affero General Public License v3.0 only (AGPL-3.0-only)**. See [`LICENSE.md`](LICENSE.md).
+TRIA SDK is **source-available for noncommercial use** under the **PolyForm Noncommercial License 1.0.0**. Research, education, experimentation, personal use, and qualifying noncommercial organizational use are permitted subject to that license.
 
-Copyright © 2026 Sarasha Elion / Trivian Institute.
+**Commercial use is not permitted under the noncommercial license.** Any commercial use, commercial deployment, incorporation into a commercial product or service, or use on behalf of a for-profit business requires a separate written commercial license from **Trivian Institute**.
+
+See [`LICENSE.md`](LICENSE.md) for the controlling license notice and commercial-use reservation.
+
+Copyright © 2026 Trivian Institute.
diff --git a/pyproject.toml b/pyproject.toml
index 4ce64e3..d1efb05 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ description = "Model-agnostic governance kernel and runtime boundary for persist
 readme = "README.md"
 requires-python = ">=3.11"
 authors = [{name = "Sarasha Elion"}]
-license = {text = "AGPL-3.0-only"}
+license = {text = "PolyForm-Noncommercial-1.0.0"}
 classifiers = [
   "Development Status :: 3 - Alpha",
   "Programming Language :: Python :: 3",
diff --git a/tests/test_release_readiness.py b/tests/test_release_readiness.py
index 1c836a0..106b708 100644
--- a/tests/test_release_readiness.py
+++ b/tests/test_release_readiness.py
@@ -75,4 +75,11 @@ def test_completion_audit_exists_and_keeps_scope_bounded():
 def test_release_candidate_keeps_license_decision_explicit():
     with (ROOT / "pyproject.toml").open("rb") as handle:
         project = tomllib.load(handle)["project"]
-    assert project["license"]["text"] == "AGPL-3.0-only"
+    assert project["license"]["text"] == "PolyForm-Noncommercial-1.0.0"
+    readme = (ROOT / "README.md").read_text()
+    license_text = (ROOT / "LICENSE.md").read_text()
+    assert "PolyForm Noncommercial License 1.0.0" in readme
+    assert "Commercial use is not permitted" in readme
+    assert "PolyForm Noncommercial License 1.0.0" in license_text
+    assert "Commercial use is not permitted" in license_text
+    assert "SPDX-License-Identifier: PolyForm-Noncommercial-1.0.0" in license_text