diff --git a/polymath_code_standard/checker.py b/polymath_code_standard/checker.py
index 521ee12..af039e3 100644
--- a/polymath_code_standard/checker.py
+++ b/polymath_code_standard/checker.py
@@ -2,7 +2,6 @@
 # SPDX-License-Identifier: Apache-2.0
 import argparse
 import functools
-import importlib.resources
 import os
 import subprocess
 import sys
@@ -12,9 +11,6 @@
 
 from identify.identify import tags_from_path
 
-# Path to resource files which are config inputs to the various hooks
-CONFIG_DIR = importlib.resources.files('polymath_code_standard') / 'config'
-
 
 @functools.cache
 def _file_tags(path: str) -> frozenset[str]:
diff --git a/polymath_code_standard/checkers/ansible.py b/polymath_code_standard/checkers/ansible/__init__.py
similarity index 97%
rename from polymath_code_standard/checkers/ansible.py
rename to polymath_code_standard/checkers/ansible/__init__.py
index 018d25b..2900ffb 100644
--- a/polymath_code_standard/checkers/ansible.py
+++ b/polymath_code_standard/checkers/ansible/__init__.py
@@ -2,12 +2,16 @@
 # SPDX-License-Identifier: Apache-2.0
 import argparse
 import hashlib
+import importlib.resources
 import json
 from pathlib import Path
 
 import yaml
 
-from polymath_code_standard.checker import CONFIG_DIR, CheckerGroup, Result, check_group
+from polymath_code_standard.checker import CheckerGroup, Result, check_group
+
+# Config files bundled alongside this checker
+CONFIG_DIR = importlib.resources.files(__package__)
 
 # Where a repo declares the collections and roles its playbooks import.
 REQUIREMENTS = Path('ansible/requirements.yml')
diff --git a/polymath_code_standard/config/ansible-lint.yml b/polymath_code_standard/checkers/ansible/ansible-lint.yml
similarity index 100%
rename from polymath_code_standard/config/ansible-lint.yml
rename to polymath_code_standard/checkers/ansible/ansible-lint.yml
diff --git a/polymath_code_standard/config/Apache-2.0.txt b/polymath_code_standard/checkers/copyright/Apache-2.0.txt
similarity index 100%
rename from polymath_code_standard/config/Apache-2.0.txt
rename to polymath_code_standard/checkers/copyright/Apache-2.0.txt
diff --git a/polymath_code_standard/checkers/copyright.py b/polymath_code_standard/checkers/copyright/__init__.py
similarity index 98%
rename from polymath_code_standard/checkers/copyright.py
rename to polymath_code_standard/checkers/copyright/__init__.py
index 732ae28..2c1e6df 100644
--- a/polymath_code_standard/checkers/copyright.py
+++ b/polymath_code_standard/checkers/copyright/__init__.py
@@ -8,8 +8,8 @@
 from pathlib import Path
 
 from polymath_code_standard.checker import CheckerGroup, Result, check_group, filter_files
+from polymath_code_standard.checkers.copyright.licenses import PROPRIETARY, get_license_full_text, get_license_header
 from polymath_code_standard.insert_license import COPYRIGHT_ORG_SENTINEL
-from polymath_code_standard.licenses import PROPRIETARY, get_license_full_text, get_license_header
 
 
 @check_group
diff --git a/polymath_code_standard/config/copyright.txt b/polymath_code_standard/checkers/copyright/copyright.txt
similarity index 100%
rename from polymath_code_standard/config/copyright.txt
rename to polymath_code_standard/checkers/copyright/copyright.txt
diff --git a/polymath_code_standard/licenses.py b/polymath_code_standard/checkers/copyright/licenses.py
similarity index 98%
rename from polymath_code_standard/licenses.py
rename to polymath_code_standard/checkers/copyright/licenses.py
index 0cbe701..ed9d12c 100644
--- a/polymath_code_standard/licenses.py
+++ b/polymath_code_standard/checkers/copyright/licenses.py
@@ -21,7 +21,7 @@
 from functools import lru_cache
 from pathlib import Path
 
-_CONFIG_DIR = Path(__file__).parent / 'config'
+_CONFIG_DIR = Path(__file__).parent
 _SPDX_BASE_URL = 'https://raw.githubusercontent.com/spdx/license-list-data/main/json/details/{id}.json'
 
 PROPRIETARY = 'proprietary'
diff --git a/polymath_code_standard/config/.cpplint.cfg b/polymath_code_standard/checkers/cpp/.cpplint.cfg
similarity index 100%
rename from polymath_code_standard/config/.cpplint.cfg
rename to polymath_code_standard/checkers/cpp/.cpplint.cfg
diff --git a/polymath_code_standard/checkers/cpp.py b/polymath_code_standard/checkers/cpp/__init__.py
similarity index 95%
rename from polymath_code_standard/checkers/cpp.py
rename to polymath_code_standard/checkers/cpp/__init__.py
index 0bc2737..ba3cdc8 100644
--- a/polymath_code_standard/checkers/cpp.py
+++ b/polymath_code_standard/checkers/cpp/__init__.py
@@ -1,6 +1,7 @@
 # SPDX-FileCopyrightText: 2026 Polymath Robotics, Inc.
 # SPDX-License-Identifier: Apache-2.0
 import argparse
+import importlib.resources
 import os
 import re
 import shutil
@@ -8,7 +9,10 @@
 import tempfile
 from pathlib import Path
 
-from polymath_code_standard.checker import CONFIG_DIR, CheckerGroup, Result, check_group, tool
+from polymath_code_standard.checker import CheckerGroup, Result, check_group, tool
+
+# Config files bundled alongside this checker
+CONFIG_DIR = importlib.resources.files(__package__)
 
 _IWYU_RE = re.compile(r'^(.+?):(\d+):\s+Add (#include (?:<[^>]+>|"[^"]+")) for')
 
diff --git a/polymath_code_standard/config/clang-format b/polymath_code_standard/checkers/cpp/clang-format
similarity index 100%
rename from polymath_code_standard/config/clang-format
rename to polymath_code_standard/checkers/cpp/clang-format
diff --git a/polymath_code_standard/checkers/python.py b/polymath_code_standard/checkers/python/__init__.py
similarity index 84%
rename from polymath_code_standard/checkers/python.py
rename to polymath_code_standard/checkers/python/__init__.py
index 9eaf77b..1426cb3 100644
--- a/polymath_code_standard/checkers/python.py
+++ b/polymath_code_standard/checkers/python/__init__.py
@@ -1,12 +1,16 @@
 # SPDX-FileCopyrightText: 2026 Polymath Robotics, Inc.
 # SPDX-License-Identifier: Apache-2.0
 import argparse
+import importlib.resources
 import os
 import shutil
 import tempfile
 from pathlib import Path
 
-from polymath_code_standard.checker import CONFIG_DIR, CheckerGroup, Result, check_group
+from polymath_code_standard.checker import CheckerGroup, Result, check_group
+
+# Config files bundled alongside this checker
+CONFIG_DIR = importlib.resources.files(__package__)
 
 
 @check_group
diff --git a/polymath_code_standard/config/ruff.toml b/polymath_code_standard/checkers/python/ruff.toml
similarity index 100%
rename from polymath_code_standard/config/ruff.toml
rename to polymath_code_standard/checkers/python/ruff.toml
diff --git a/polymath_code_standard/checkers/xml.py b/polymath_code_standard/checkers/xml/__init__.py
similarity index 92%
rename from polymath_code_standard/checkers/xml.py
rename to polymath_code_standard/checkers/xml/__init__.py
index 8f7f63c..ada3314 100644
--- a/polymath_code_standard/checkers/xml.py
+++ b/polymath_code_standard/checkers/xml/__init__.py
@@ -2,10 +2,14 @@
 # SPDX-License-Identifier: Apache-2.0
 import argparse
 import functools
+import importlib.resources
 
 from lxml import etree
 
-from polymath_code_standard.checker import CONFIG_DIR, CheckerGroup, Result, check_group
+from polymath_code_standard.checker import CheckerGroup, Result, check_group
+
+# Config files bundled alongside this checker
+CONFIG_DIR = importlib.resources.files(__package__)
 
 # Schemas bundled as package resources; any other URL is fetched from the network.
 _BUNDLED_SCHEMAS: dict[str, str] = {
diff --git a/polymath_code_standard/config/package_format3.xsd b/polymath_code_standard/checkers/xml/package_format3.xsd
similarity index 100%
rename from polymath_code_standard/config/package_format3.xsd
rename to polymath_code_standard/checkers/xml/package_format3.xsd
diff --git a/pyproject.toml b/pyproject.toml
index 7a876b6..838d305 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,11 @@ dependencies = [
 
 
 [tool.setuptools.package-data]
-"polymath_code_standard" = ["config/*",  "config/.*"]
+"polymath_code_standard.checkers.ansible" = ["ansible-lint.yml"]
+"polymath_code_standard.checkers.copyright" = ["*.txt"]
+"polymath_code_standard.checkers.cpp" = [".cpplint.cfg", "clang-format"]
+"polymath_code_standard.checkers.python" = ["ruff.toml"]
+"polymath_code_standard.checkers.xml" = ["package_format3.xsd"]
 
 [tool.setuptools.packages.find]
 exclude = ["test_files*", "tests*"]
diff --git a/tests/test_cpp.py b/tests/test_cpp.py
index dbc7282..9139d40 100644
--- a/tests/test_cpp.py
+++ b/tests/test_cpp.py
@@ -8,8 +8,13 @@
 
 import pytest
 
-from polymath_code_standard.checker import CONFIG_DIR
-from polymath_code_standard.checkers.cpp import _insert_includes, _insertion_point, _parse_iwyu_output, fix_iwyu
+from polymath_code_standard.checkers.cpp import (
+    CONFIG_DIR,
+    _insert_includes,
+    _insertion_point,
+    _parse_iwyu_output,
+    fix_iwyu,
+)
 
 _PROJECT_ROOT = Path(__file__).parent.parent
 
diff --git a/tests/test_licenses.py b/tests/test_licenses.py
index 0437c85..e4c9805 100644
--- a/tests/test_licenses.py
+++ b/tests/test_licenses.py
@@ -7,8 +7,8 @@
 
 import pytest
 
-from polymath_code_standard import licenses
-from polymath_code_standard.licenses import get_license_full_text, get_license_header
+from polymath_code_standard.checkers.copyright import licenses
+from polymath_code_standard.checkers.copyright.licenses import get_license_full_text, get_license_header
 
 # ---------------------------------------------------------------------------
 # Minimal mock SPDX payloads
@@ -35,12 +35,12 @@
 
 
 def _mock_fetch(data: dict):
-    return patch('polymath_code_standard.licenses._fetch_spdx_json', return_value=data)
+    return patch('polymath_code_standard.checkers.copyright.licenses._fetch_spdx_json', return_value=data)
 
 
 def _mock_fetch_404(spdx_id: str = 'UNKNOWN-1.0'):
     exc = urllib.error.HTTPError(url=None, code=404, msg='Not Found', hdrs=None, fp=None)
-    return patch('polymath_code_standard.licenses._fetch_spdx_json', side_effect=exc)
+    return patch('polymath_code_standard.checkers.copyright.licenses._fetch_spdx_json', side_effect=exc)
 
 
 @pytest.fixture(autouse=True)
@@ -77,7 +77,7 @@ def test_reuse_style_works_for_any_id(self):
         assert 'SPDX-License-Identifier: GPL-3.0-only' in result
 
     def test_reuse_style_does_not_fetch_network(self):
-        with patch('polymath_code_standard.licenses._fetch_spdx_json') as mock_fetch:
+        with patch('polymath_code_standard.checkers.copyright.licenses._fetch_spdx_json') as mock_fetch:
             get_license_header('Apache-2.0', '2024', 'Acme Corp', reuse_style_header=True)
         mock_fetch.assert_not_called()
 
@@ -178,12 +178,12 @@ def test_unknown_id_raises(self):
             get_license_full_text('UNKNOWN-1.0', '2024', 'Acme Corp')
 
     def test_bundled_apache_uses_canonical_formatting(self):
-        with patch('polymath_code_standard.licenses._fetch_spdx_json') as mock_fetch:
+        with patch('polymath_code_standard.checkers.copyright.licenses._fetch_spdx_json') as mock_fetch:
             result = get_license_full_text('Apache-2.0', '2024', 'Acme Corp')
         mock_fetch.assert_not_called()
         assert '                                 Apache License' in result
 
     def test_bundled_takes_precedence_over_spdx(self):
-        with patch('polymath_code_standard.licenses._fetch_spdx_json') as mock_fetch:
+        with patch('polymath_code_standard.checkers.copyright.licenses._fetch_spdx_json') as mock_fetch:
             get_license_full_text('Apache-2.0', '2024', 'Acme Corp')
         mock_fetch.assert_not_called()