PolicyEngine · MaxGhenis · Jun 7, 2026 · Jun 6, 2026
diff --git a/changelog.d/391.changed.md b/changelog.d/391.changed.md
@@ -0,0 +1 @@
+Reverted the certified US dataset to Enhanced CPS (`policyengine-us-data` 1.115.5, `policyengine-us` 1.715.2). The microplex MP 2cdd45d artifact promoted in 4.14.1 loses to production eCPS on a correctly-scored target surface (full PE-native loss 0.0428 vs 0.0266; eCPS wins 2334 of 2809 targets) and is 14–49× worse on income components.
diff --git a/pyproject.toml b/pyproject.toml
@@ -49,7 +49,7 @@ uk = [
 ]
 us = [
     "policyengine_core==3.26.1",
-    "policyengine-us==1.715.3",
+    "policyengine-us==1.715.2",
 ]
 dev = [
     "pytest",
@@ -64,7 +64,7 @@ dev = [
     "ruff>=0.9.0",
     "policyengine_core==3.26.1",
     "policyengine-uk==2.88.20",
-    "policyengine-us==1.715.3",
+    "policyengine-us==1.715.2",
     "towncrier>=24.8.0",
     "mypy>=1.11.0",
     "pytest-cov>=5.0.0",

diff --git a/src/policyengine/data/release_manifests/us.json b/src/policyengine/data/release_manifests/us.json
@@ -5,40 +5,40 @@
   "policyengine_version": "4.14.1",
   "model_package": {
     "name": "policyengine-us",
-    "version": "1.715.3",
-    "sha256": "a34f305871f702d94f7a4d220bfd5312f11d83a417e793566892541871dfded3",
-    "wheel_url": "https://files.pythonhosted.org/packages/f4/0f/e6b594d46fffeb6e40db3a51441cec6a6e76ade2b178eab3836528dbc15c/policyengine_us-1.715.3-py3-none-any.whl"
+    "version": "1.715.2",
+    "sha256": "abf079828419762f5c4b0291a70f6e424744200f237e1ae0f06e25f10130c399",
+    "wheel_url": "https://files.pythonhosted.org/packages/45/a1/1d56bdbb69d7ce06bedd3892203a75ac3350a90c0b5fcea2fb50db46670f/policyengine_us-1.715.2-py3-none-any.whl"
   },
   "data_package": {
     "name": "policyengine-us-data",
-    "version": "mp-ecps-2024-2cdd45d-20260605",
+    "version": "1.115.5",
     "repo_id": "policyengine/policyengine-us-data",
-    "release_manifest_path": "releases/mp-ecps-2024-2cdd45d-20260605/release_manifest.json",
-    "release_manifest_revision": "a091769a2d5e075762c520950ca8ca7f87017225"
+    "release_manifest_path": "release_manifest.json",
+    "release_manifest_revision": "d47fb5475144260a75467d2f2e22b2d5d53d4d57"
   },
   "certified_data_artifact": {
     "data_package": {
       "name": "policyengine-us-data",
-      "version": "mp-ecps-2024-2cdd45d-20260605"
+      "version": "1.115.5"
     },
-    "build_id": "microplex-us-2cdd45d-nodeferred-gzip1-20260605",
+    "build_id": "policyengine-us-data-1.115.5",
     "dataset": "enhanced_cps_2024",
-    "uri": "hf://policyengine/policyengine-us-data/enhanced_cps_2024.h5@a091769a2d5e075762c520950ca8ca7f87017225",
-    "sha256": "8d2ccab299d59a3dea075781346f85ed45f74562dfe599977131e026acde93a8"
+    "uri": "hf://policyengine/policyengine-us-data/enhanced_cps_2024.h5@d47fb5475144260a75467d2f2e22b2d5d53d4d57",
+    "sha256": "0a6b961ad363a421bde99f2c8e5d8f20370bcba45fd303050537a25bdd805b14"
   },
   "certification": {
-    "compatibility_basis": "exact_build_model_version",
-    "data_build_id": "microplex-us-2cdd45d-nodeferred-gzip1-20260605",
-    "built_with_model_version": "1.715.3",
-    "certified_for_model_version": "1.715.3",
+    "compatibility_basis": "legacy_compatible_model_package",
+    "data_build_id": "policyengine-us-data-1.115.5",
+    "built_with_model_version": "1.700.0",
+    "certified_for_model_version": "1.715.2",
     "certified_by": "policyengine-us-data release manifest",
-    "built_with_model_git_sha": "f7458313c86fa580fb1e43a2f18252d67cf76e4a"
+    "data_build_fingerprint": "sha256:b0862de383ffcbe45f4ba0aa9c6aaec286cd4c6688c6ccb33f939bc176f9a8a0"
   },
   "default_dataset": "enhanced_cps_2024",
   "datasets": {
     "enhanced_cps_2024": {
       "path": "enhanced_cps_2024.h5",
-      "sha256": "8d2ccab299d59a3dea075781346f85ed45f74562dfe599977131e026acde93a8"
+      "sha256": "0a6b961ad363a421bde99f2c8e5d8f20370bcba45fd303050537a25bdd805b14"
     },
     "long_term_cps_2026": {
       "path": "long_term/2026.h5",

diff --git a/src/policyengine/data/release_manifests/us.trace.tro.jsonld b/src/policyengine/data/release_manifests/us.trace.tro.jsonld
@@ -17,7 +17,7 @@
         "schema:name": "PolicyEngine",
         "schema:url": "https://policyengine.org"
       },
-      "schema:dateCreated": "2026-06-05T15:35:21Z",
+      "schema:dateCreated": "2026-05-20T19:37:01.417728Z",
       "schema:description": "TRACE TRO for certified runtime bundle us-4.14.1 covering the bundle manifest, the certified dataset artifact, the country model wheel, and the country data release manifest when it is available.",
       "schema:name": "policyengine us certified bundle TRO",
       "trov:createdWith": {
@@ -45,23 +45,23 @@
               "trov:hasArtifact": {
                 "@id": "composition/1/artifact/data_release_manifest"
               },
-              "trov:hasLocation": "https://huggingface.co/policyengine/policyengine-us-data/resolve/a091769a2d5e075762c520950ca8ca7f87017225/releases/mp-ecps-2024-2cdd45d-20260605/release_manifest.json"
+              "trov:hasLocation": "https://huggingface.co/policyengine/policyengine-us-data/resolve/d47fb5475144260a75467d2f2e22b2d5d53d4d57/release_manifest.json"
             },
             {
               "@id": "arrangement/1/location/dataset",
               "@type": "trov:ArtifactLocation",
               "trov:hasArtifact": {
                 "@id": "composition/1/artifact/dataset"
               },
-              "trov:hasLocation": "https://huggingface.co/policyengine/policyengine-us-data/resolve/a091769a2d5e075762c520950ca8ca7f87017225/enhanced_cps_2024.h5"
+              "trov:hasLocation": "https://huggingface.co/policyengine/policyengine-us-data/resolve/d47fb5475144260a75467d2f2e22b2d5d53d4d57/enhanced_cps_2024.h5"
             },
             {
               "@id": "arrangement/1/location/model_wheel",
               "@type": "trov:ArtifactLocation",
               "trov:hasArtifact": {
                 "@id": "composition/1/artifact/model_wheel"
               },
-              "trov:hasLocation": "https://files.pythonhosted.org/packages/f4/0f/e6b594d46fffeb6e40db3a51441cec6a6e76ade2b178eab3836528dbc15c/policyengine_us-1.715.3-py3-none-any.whl"
+              "trov:hasLocation": "https://files.pythonhosted.org/packages/45/a1/1d56bdbb69d7ce06bedd3892203a75ac3350a90c0b5fcea2fb50db46670f/policyengine_us-1.715.2-py3-none-any.whl"
             }
           ]
         }
@@ -75,54 +75,51 @@
             "@type": "trov:ResearchArtifact",
             "schema:name": "policyengine.py bundle manifest for us",
             "trov:mimeType": "application/json",
-            "trov:sha256": "84b402da0146d48c072f3c96c6b1e0794b2e9875eeace2802091f56eeb84051b"
+            "trov:sha256": "77fc84179d7065f4ddf22c6c41eee79878dcf58923633cf3324db62e26227a55"
           },
           {
             "@id": "composition/1/artifact/data_release_manifest",
             "@type": "trov:ResearchArtifact",
-            "schema:name": "policyengine-us-data release manifest mp-ecps-2024-2cdd45d-20260605",
+            "schema:name": "policyengine-us-data release manifest 1.115.5",
             "trov:mimeType": "application/json",
-            "trov:sha256": "4961f6ee85124b0459d9318d09e0160611eab8cca3c08fedbc8481898e4abdfe"
+            "trov:sha256": "577fbf704da44f63d0432dc3e80f3686eb3a32020d13ca6b7b6cf7eb60b4742c"
           },
           {
             "@id": "composition/1/artifact/dataset",
             "@type": "trov:ResearchArtifact",
             "schema:name": "enhanced_cps_2024",
             "trov:mimeType": "application/x-hdf5",
-            "trov:sha256": "8d2ccab299d59a3dea075781346f85ed45f74562dfe599977131e026acde93a8"
+            "trov:sha256": "0a6b961ad363a421bde99f2c8e5d8f20370bcba45fd303050537a25bdd805b14"
           },
           {
             "@id": "composition/1/artifact/model_wheel",
             "@type": "trov:ResearchArtifact",
-            "schema:name": "policyengine-us==1.715.3 wheel",
+            "schema:name": "policyengine-us==1.715.2 wheel",
             "trov:mimeType": "application/zip",
-            "trov:sha256": "a34f305871f702d94f7a4d220bfd5312f11d83a417e793566892541871dfded3"
+            "trov:sha256": "abf079828419762f5c4b0291a70f6e424744200f237e1ae0f06e25f10130c399"
           }
         ],
         "trov:hasFingerprint": {
           "@id": "composition/1/fingerprint",
           "@type": "trov:CompositionFingerprint",
-          "trov:sha256": "49ae35b8fca9eaebae4c615f2ff1d5bfa0f4582f33ec4f81564e367ccc4ddcbf"
+          "trov:sha256": "07462bed5d208e1bcac594aff0437c496549cc98d378706df91776d9bc4869ea"
         }
       },
       "trov:hasPerformance": {
         "@id": "trp/1",
         "@type": "trov:TransparentResearchPerformance",
-        "pe:builtWithModelGitSha": "f7458313c86fa580fb1e43a2f18252d67cf76e4a",
-        "pe:builtWithModelVersion": "1.715.3",
+        "pe:builtWithModelVersion": "1.700.0",
         "pe:certifiedBy": "policyengine-us-data release manifest",
-        "pe:certifiedForModelVersion": "1.715.3",
-        "pe:ciGitRef": "refs/heads/main",
-        "pe:ciGitSha": "73ebe7b876c5a3631443b0cd0cf8989b63ad8370",
-        "pe:ciRunUrl": "https://github.com/PolicyEngine/policyengine.py/actions/runs/27026377517",
-        "pe:compatibilityBasis": "exact_build_model_version",
-        "pe:dataBuildId": "microplex-us-2cdd45d-nodeferred-gzip1-20260605",
-        "pe:emittedIn": "github-actions",
-        "rdfs:comment": "Certification of build microplex-us-2cdd45d-nodeferred-gzip1-20260605 for policyengine-us 1.715.3.",
+        "pe:certifiedForModelVersion": "1.715.2",
+        "pe:compatibilityBasis": "legacy_compatible_model_package",
+        "pe:dataBuildFingerprint": "sha256:b0862de383ffcbe45f4ba0aa9c6aaec286cd4c6688c6ccb33f939bc176f9a8a0",
+        "pe:dataBuildId": "policyengine-us-data-1.115.5",
+        "pe:emittedIn": "local",
+        "rdfs:comment": "Certification of build policyengine-us-data-1.115.5 for policyengine-us 1.715.2.",
         "trov:accessedArrangement": {
           "@id": "arrangement/1"
         },
-        "trov:startedAtTime": "2026-06-05T15:35:21Z",
+        "trov:startedAtTime": "2026-05-20T19:37:01.417728Z",
         "trov:wasConductedBy": {
           "@id": "trs"
         }

diff --git a/tests/test_models.py b/tests/test_models.py
@@ -113,12 +113,12 @@ def test_has_release_manifest_metadata(self):
         assert us_latest.release_manifest is not None
         assert us_latest.release_manifest.country_id == "us"
         assert us_latest.model_package.name == "policyengine-us"
-        assert us_latest.model_package.version == "1.715.3"
+        assert us_latest.model_package.version == "1.715.2"
         assert us_latest.data_package.name == "policyengine-us-data"
-        assert us_latest.data_package.version == "mp-ecps-2024-2cdd45d-20260605"
+        assert us_latest.data_package.version == "1.115.5"
         assert (
             us_latest.default_dataset_uri
-            == "hf://policyengine/policyengine-us-data/enhanced_cps_2024.h5@a091769a2d5e075762c520950ca8ca7f87017225"
+            == "hf://policyengine/policyengine-us-data/enhanced_cps_2024.h5@d47fb5475144260a75467d2f2e22b2d5d53d4d57"
         )
 
     def test_has_hundreds_of_parameters(self):

diff --git a/tests/test_release_manifests.py b/tests/test_release_manifests.py
@@ -41,13 +41,11 @@
     PYPROJECT.read_text(),
     re.MULTILINE,
 ).group(1)
-US_MODEL_VERSION = "1.715.3"
-US_BUILT_WITH_MODEL_VERSION = "1.715.3"
-US_BUILT_WITH_MODEL_GIT_SHA = "f7458313c86fa580fb1e43a2f18252d67cf76e4a"
-US_DATA_RELEASE_VERSION = "mp-ecps-2024-2cdd45d-20260605"
-US_DATA_BUILD_ID = "microplex-us-2cdd45d-nodeferred-gzip1-20260605"
-US_DATA_RELEASE_PATH = "releases/mp-ecps-2024-2cdd45d-20260605/release_manifest.json"
-US_DATA_RELEASE_REVISION = "a091769a2d5e075762c520950ca8ca7f87017225"
+US_MODEL_VERSION = "1.715.2"
+US_BUILT_WITH_MODEL_VERSION = "1.700.0"
+US_DATA_RELEASE_VERSION = "1.115.5"
+US_DATA_RELEASE_PATH = "release_manifest.json"
+US_DATA_RELEASE_REVISION = "d47fb5475144260a75467d2f2e22b2d5d53d4d57"
 US_CERTIFICATION_SOURCE = "policyengine-us-data release manifest"
 US_DEFAULT_DATASET_URI = (
     "hf://policyengine/policyengine-us-data/"
@@ -102,18 +100,23 @@ def test__given_us_manifest__then_has_pinned_model_and_data_packages(self):
             manifest.data_package.release_manifest_revision == US_DATA_RELEASE_REVISION
         )
         assert manifest.certified_data_artifact is not None
-        assert manifest.certified_data_artifact.build_id == US_DATA_BUILD_ID
+        assert (
+            manifest.certified_data_artifact.build_id
+            == f"policyengine-us-data-{US_DATA_RELEASE_VERSION}"
+        )
         assert manifest.certified_data_artifact.dataset == "enhanced_cps_2024"
         assert manifest.certification is not None
-        assert manifest.certification.data_build_id == US_DATA_BUILD_ID
-        assert manifest.certification.compatibility_basis == "exact_build_model_version"
         assert (
-            manifest.certification.built_with_model_version
-            == US_BUILT_WITH_MODEL_VERSION
+            manifest.certification.data_build_id
+            == f"policyengine-us-data-{US_DATA_RELEASE_VERSION}"
         )
         assert (
-            manifest.certification.built_with_model_git_sha
-            == US_BUILT_WITH_MODEL_GIT_SHA
+            manifest.certification.compatibility_basis
+            == "legacy_compatible_model_package"
+        )
+        assert (
+            manifest.certification.built_with_model_version
+            == US_BUILT_WITH_MODEL_VERSION
         )
         assert manifest.certification.certified_for_model_version == US_MODEL_VERSION
 

diff --git a/uv.lock b/uv.lock
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Reverted the certified US dataset to Enhanced CPS (`policyengine-us-data` 1.115.5, `policyengine-us` 1.715.2). The microplex MP 2cdd45d artifact promoted in 4.14.1 loses to production eCPS on a correctly-scored target surface (full PE-native loss 0.0428 vs 0.0266; eCPS wins 2334 of 2809 targets) and is 14–49× worse on income components.