diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3f64627a70..7c73f3ca31 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -6,7 +6,7 @@ on:
     - 'release/*'
   pull_request:
 env:
-  CORE_REPO_SHA: 5de7ffd7cbb555fb04d0138361a188496557080d
+  CORE_REPO_SHA: ce6449accf315977dd1eab940f7f49b7d894618f
 
 jobs:
   build:
diff --git a/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/middleware.py b/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/middleware.py
index 1f465ca57a..e4277323e7 100644
--- a/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/middleware.py
+++ b/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/middleware.py
@@ -28,7 +28,6 @@
 )
 from opentelemetry.propagators import extract
 from opentelemetry.trace import SpanKind, get_tracer
-from opentelemetry.util import ExcludeList
 
 try:
     from django.core.urlresolvers import (  # pylint: disable=no-name-in-module
@@ -62,18 +61,9 @@ class _DjangoMiddleware(MiddlewareMixin):
     _environ_span_key = "opentelemetry-instrumentor-django.span_key"
     _environ_exception_key = "opentelemetry-instrumentor-django.exception_key"
 
-    _excluded_urls = Configuration().DJANGO_EXCLUDED_URLS or []
-    if _excluded_urls:
-        _excluded_urls = ExcludeList(str.split(_excluded_urls, ","))
-    else:
-        _excluded_urls = ExcludeList(_excluded_urls)
+    _excluded_urls = Configuration()._excluded_urls("django")
 
-    _traced_request_attrs = [
-        attr.strip()
-        for attr in (Configuration().DJANGO_TRACED_REQUEST_ATTRS or "").split(
-            ","
-        )
-    ]
+    _traced_request_attrs = Configuration()._traced_request_attrs("django")
 
     @staticmethod
     def _get_span_name(request):
diff --git a/instrumentation/opentelemetry-instrumentation-django/tests/test_middleware.py b/instrumentation/opentelemetry-instrumentation-django/tests/test_middleware.py
index 3f70f62bec..9bd23ee529 100644
--- a/instrumentation/opentelemetry-instrumentation-django/tests/test_middleware.py
+++ b/instrumentation/opentelemetry-instrumentation-django/tests/test_middleware.py
@@ -28,7 +28,6 @@
 from opentelemetry.test.wsgitestutil import WsgiTestBase
 from opentelemetry.trace import SpanKind
 from opentelemetry.trace.status import StatusCode
-from opentelemetry.util import ExcludeList
 
 # pylint: disable=import-error
 from .views import (
@@ -66,9 +65,30 @@ def setUp(self):
         setup_test_environment()
         _django_instrumentor.instrument()
         Configuration._reset()  # pylint: disable=protected-access
+        self.env_patch = patch.dict(
+            "os.environ",
+            {
+                "OTEL_PYTHON_DJANGO_EXCLUDED_URLS": "http://testserver/excluded_arg/123,excluded_noarg",
+                "OTEL_PYTHON_DJANGO_TRACED_REQUEST_ATTRS": "path_info,content_type,non_existing_variable",
+            },
+        )
+        self.env_patch.start()
+        self.exclude_patch = patch(
+            "opentelemetry.instrumentation.django.middleware._DjangoMiddleware._excluded_urls",
+            Configuration()._excluded_urls("django"),
+        )
+        self.traced_patch = patch(
+            "opentelemetry.instrumentation.django.middleware._DjangoMiddleware._traced_request_attrs",
+            Configuration()._traced_request_attrs("django"),
+        )
+        self.exclude_patch.start()
+        self.traced_patch.start()
 
     def tearDown(self):
         super().tearDown()
+        self.env_patch.stop()
+        self.exclude_patch.stop()
+        self.traced_patch.stop()
         teardown_test_environment()
         _django_instrumentor.uninstrument()
 
@@ -227,10 +247,6 @@ def test_error(self):
                 self.assertEqual(view_data.labels, key)
                 self.assertEqual(view_data.aggregator.current.count, 1)
 
-    @patch(
-        "opentelemetry.instrumentation.django.middleware._DjangoMiddleware._excluded_urls",
-        ExcludeList(["http://testserver/excluded_arg/123", "excluded_noarg"]),
-    )
     def test_exclude_lists(self):
         client = Client()
         client.get("/excluded_arg/123")
@@ -288,28 +304,11 @@ def test_span_name_404(self):
         self.assertEqual(span.name, "HTTP GET")
 
     def test_traced_request_attrs(self):
-        with patch(
-            "opentelemetry.instrumentation.django.middleware._DjangoMiddleware._traced_request_attrs",
-            [],
-        ):
-            Client().get("/span_name/1234/", CONTENT_TYPE="test/ct")
-            span_list = self.memory_exporter.get_finished_spans()
-            self.assertEqual(len(span_list), 1)
-
-            span = span_list[0]
-            self.assertNotIn("path_info", span.attributes)
-            self.assertNotIn("content_type", span.attributes)
-            self.memory_exporter.clear()
-
-        with patch(
-            "opentelemetry.instrumentation.django.middleware._DjangoMiddleware._traced_request_attrs",
-            ["path_info", "content_type", "non_existing_variable"],
-        ):
-            Client().get("/span_name/1234/", CONTENT_TYPE="test/ct")
-            span_list = self.memory_exporter.get_finished_spans()
-            self.assertEqual(len(span_list), 1)
-
-            span = span_list[0]
-            self.assertEqual(span.attributes["path_info"], "/span_name/1234/")
-            self.assertEqual(span.attributes["content_type"], "test/ct")
-            self.assertNotIn("non_existing_variable", span.attributes)
+        Client().get("/span_name/1234/", CONTENT_TYPE="test/ct")
+        span_list = self.memory_exporter.get_finished_spans()
+        self.assertEqual(len(span_list), 1)
+
+        span = span_list[0]
+        self.assertEqual(span.attributes["path_info"], "/span_name/1234/")
+        self.assertEqual(span.attributes["content_type"], "test/ct")
+        self.assertNotIn("non_existing_variable", span.attributes)
diff --git a/instrumentation/opentelemetry-instrumentation-falcon/src/opentelemetry/instrumentation/falcon/__init__.py b/instrumentation/opentelemetry-instrumentation-falcon/src/opentelemetry/instrumentation/falcon/__init__.py
index 55f8e98dcb..e9b1f16800 100644
--- a/instrumentation/opentelemetry-instrumentation-falcon/src/opentelemetry/instrumentation/falcon/__init__.py
+++ b/instrumentation/opentelemetry-instrumentation-falcon/src/opentelemetry/instrumentation/falcon/__init__.py
@@ -58,7 +58,7 @@ def on_get(self, req, resp):
     http_status_to_status_code,
 )
 from opentelemetry.trace.status import Status
-from opentelemetry.util import ExcludeList, time_ns
+from opentelemetry.util import time_ns
 
 _logger = getLogger(__name__)
 
@@ -68,15 +68,8 @@ def on_get(self, req, resp):
 _ENVIRON_TOKEN = "opentelemetry-falcon.token"
 _ENVIRON_EXC = "opentelemetry-falcon.exc"
 
-
-def get_excluded_urls():
-    urls = configuration.Configuration().FALCON_EXCLUDED_URLS or ""
-    if urls:
-        urls = str.split(urls, ",")
-    return ExcludeList(urls)
-
-
-_excluded_urls = get_excluded_urls()
+cfg = configuration.Configuration()
+_excluded_urls = cfg._excluded_urls("falcon")
 
 
 class FalconInstrumentor(BaseInstrumentor):
@@ -156,12 +149,7 @@ class _TraceMiddleware:
 
     def __init__(self, tracer=None, traced_request_attrs=None):
         self.tracer = tracer
-        self._traced_request_attrs = traced_request_attrs or [
-            attr.strip()
-            for attr in (
-                Configuration().FALCON_TRACED_REQUEST_ATTRS or ""
-            ).split(",")
-        ]
+        self._traced_request_attrs = cfg._traced_request_attrs("falcon")
 
     def process_request(self, req, resp):
         span = req.env.get(_ENVIRON_SPAN_KEY)
diff --git a/instrumentation/opentelemetry-instrumentation-falcon/tests/test_falcon.py b/instrumentation/opentelemetry-instrumentation-falcon/tests/test_falcon.py
index fe33a2f2dd..464f0d8f5c 100644
--- a/instrumentation/opentelemetry-instrumentation-falcon/tests/test_falcon.py
+++ b/instrumentation/opentelemetry-instrumentation-falcon/tests/test_falcon.py
@@ -16,10 +16,10 @@
 
 from falcon import testing
 
+from opentelemetry.configuration import Configuration
 from opentelemetry.instrumentation.falcon import FalconInstrumentor
 from opentelemetry.test.test_base import TestBase
 from opentelemetry.trace.status import StatusCode
-from opentelemetry.util import ExcludeList
 
 from .app import make_app
 
@@ -29,6 +29,30 @@ def setUp(self):
         super().setUp()
         FalconInstrumentor().instrument()
         self.app = make_app()
+        # pylint: disable=protected-access
+        Configuration()._reset()
+        self.env_patch = patch.dict(
+            "os.environ",
+            {
+                "OTEL_PYTHON_FALCON_EXCLUDED_URLS": "ping",
+                "OTEL_PYTHON_FALCON_TRACED_REQUEST_ATTRS": "query_string",
+            },
+        )
+        self.env_patch.start()
+        self.exclude_patch = patch(
+            "opentelemetry.instrumentation.falcon._excluded_urls",
+            Configuration()._excluded_urls("falcon"),
+        )
+        middleware = self.app._middleware[0][  # pylint:disable=W0212
+            0
+        ].__self__
+        self.traced_patch = patch.object(
+            middleware,
+            "_traced_request_attrs",
+            Configuration()._traced_request_attrs("falcon"),
+        )
+        self.exclude_patch.start()
+        self.traced_patch.start()
 
     def client(self):
         return testing.TestClient(self.app)
@@ -37,6 +61,9 @@ def tearDown(self):
         super().tearDown()
         with self.disable_logging():
             FalconInstrumentor().uninstrument()
+        self.env_patch.stop()
+        self.exclude_patch.stop()
+        self.traced_patch.stop()
 
     def test_get(self):
         self._test_method("GET")
@@ -155,10 +182,6 @@ def test_uninstrument(self):
         spans = self.memory_exporter.get_finished_spans()
         self.assertEqual(len(spans), 0)
 
-    @patch(
-        "opentelemetry.instrumentation.falcon._excluded_urls",
-        ExcludeList(["ping"]),
-    )
     def test_exclude_lists(self):
         self.client().simulate_get(path="/ping")
         span_list = self.memory_exporter.get_finished_spans()
@@ -171,19 +194,9 @@ def test_exclude_lists(self):
     def test_traced_request_attributes(self):
         self.client().simulate_get(path="/hello?q=abc")
         span = self.memory_exporter.get_finished_spans()[0]
-        self.assertNotIn("query_string", span.attributes)
-        self.memory_exporter.clear()
-
-        middleware = self.app._middleware[0][  # pylint:disable=W0212
-            0
-        ].__self__
-        with patch.object(
-            middleware, "_traced_request_attrs", ["query_string"]
-        ):
-            self.client().simulate_get(path="/hello?q=abc")
-            span = self.memory_exporter.get_finished_spans()[0]
-            self.assertIn("query_string", span.attributes)
-            self.assertEqual(span.attributes["query_string"], "q=abc")
+        self.assertIn("query_string", span.attributes)
+        self.assertEqual(span.attributes["query_string"], "q=abc")
+        self.assertNotIn("not_available_attr", span.attributes)
 
     def test_traced_not_recording(self):
         mock_tracer = Mock()
diff --git a/instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry/instrumentation/flask/__init__.py b/instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry/instrumentation/flask/__init__.py
index bfc1b3d798..d4758fed58 100644
--- a/instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry/instrumentation/flask/__init__.py
+++ b/instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry/instrumentation/flask/__init__.py
@@ -55,7 +55,7 @@ def hello():
 from opentelemetry import configuration, context, propagators, trace
 from opentelemetry.instrumentation.flask.version import __version__
 from opentelemetry.instrumentation.instrumentor import BaseInstrumentor
-from opentelemetry.util import ExcludeList, time_ns
+from opentelemetry.util import time_ns
 
 _logger = getLogger(__name__)
 
@@ -65,14 +65,7 @@ def hello():
 _ENVIRON_TOKEN = "opentelemetry-flask.token"
 
 
-def get_excluded_urls():
-    urls = configuration.Configuration().FLASK_EXCLUDED_URLS or []
-    if urls:
-        urls = str.split(urls, ",")
-    return ExcludeList(urls)
-
-
-_excluded_urls = get_excluded_urls()
+_excluded_urls = configuration.Configuration()._excluded_urls("flask")
 
 
 def get_default_span_name():
diff --git a/instrumentation/opentelemetry-instrumentation-flask/tests/test_programmatic.py b/instrumentation/opentelemetry-instrumentation-flask/tests/test_programmatic.py
index 0bed5d20d8..57aab89058 100644
--- a/instrumentation/opentelemetry-instrumentation-flask/tests/test_programmatic.py
+++ b/instrumentation/opentelemetry-instrumentation-flask/tests/test_programmatic.py
@@ -17,10 +17,10 @@
 from flask import Flask, request
 
 from opentelemetry import trace
+from opentelemetry.configuration import Configuration
 from opentelemetry.instrumentation.flask import FlaskInstrumentor
 from opentelemetry.test.test_base import TestBase
 from opentelemetry.test.wsgitestutil import WsgiTestBase
-from opentelemetry.util import ExcludeList
 
 # pylint: disable=import-error
 from .base_test import InstrumentationTest
@@ -54,8 +54,23 @@ def setUp(self):
 
         self._common_initialization()
 
+        self.env_patch = patch.dict(
+            "os.environ",
+            {
+                "OTEL_PYTHON_FLASK_EXCLUDED_URLS": "http://localhost/excluded_arg/123,excluded_noarg"
+            },
+        )
+        self.env_patch.start()
+        self.exclude_patch = patch(
+            "opentelemetry.instrumentation.flask._excluded_urls",
+            Configuration()._excluded_urls("flask"),
+        )
+        self.exclude_patch.start()
+
     def tearDown(self):
         super().tearDown()
+        self.env_patch.stop()
+        self.exclude_patch.stop()
         with self.disable_logging():
             FlaskInstrumentor().uninstrument_app(self.app)
 
@@ -158,10 +173,6 @@ def test_internal_error(self):
         self.assertEqual(span_list[0].kind, trace.SpanKind.SERVER)
         self.assertEqual(span_list[0].attributes, expected_attrs)
 
-    @patch(
-        "opentelemetry.instrumentation.flask._excluded_urls",
-        ExcludeList(["http://localhost/excluded_arg/123", "excluded_noarg"]),
-    )
     def test_exclude_lists(self):
         self.client.get("/excluded_arg/123")
         span_list = self.memory_exporter.get_finished_spans()
diff --git a/instrumentation/opentelemetry-instrumentation-pyramid/src/opentelemetry/instrumentation/pyramid/callbacks.py b/instrumentation/opentelemetry-instrumentation-pyramid/src/opentelemetry/instrumentation/pyramid/callbacks.py
index e7110bd2b5..40894e2c62 100644
--- a/instrumentation/opentelemetry-instrumentation-pyramid/src/opentelemetry/instrumentation/pyramid/callbacks.py
+++ b/instrumentation/opentelemetry-instrumentation-pyramid/src/opentelemetry/instrumentation/pyramid/callbacks.py
@@ -8,7 +8,7 @@
 import opentelemetry.instrumentation.wsgi as otel_wsgi
 from opentelemetry import configuration, context, propagators, trace
 from opentelemetry.instrumentation.pyramid.version import __version__
-from opentelemetry.util import ExcludeList, time_ns
+from opentelemetry.util import time_ns
 
 TWEEN_NAME = "opentelemetry.instrumentation.pyramid.trace_tween_factory"
 SETTING_TRACE_ENABLED = "opentelemetry-pyramid.trace_enabled"
@@ -22,14 +22,7 @@
 _logger = getLogger(__name__)
 
 
-def get_excluded_urls():
-    urls = configuration.Configuration().PYRAMID_EXCLUDED_URLS or []
-    if urls:
-        urls = str.split(urls, ",")
-    return ExcludeList(urls)
-
-
-_excluded_urls = get_excluded_urls()
+_excluded_urls = configuration.Configuration()._excluded_urls("pyramid")
 
 
 def includeme(config):
diff --git a/instrumentation/opentelemetry-instrumentation-pyramid/tests/test_programmatic.py b/instrumentation/opentelemetry-instrumentation-pyramid/tests/test_programmatic.py
index 77427b0db7..f5c8b3ba02 100644
--- a/instrumentation/opentelemetry-instrumentation-pyramid/tests/test_programmatic.py
+++ b/instrumentation/opentelemetry-instrumentation-pyramid/tests/test_programmatic.py
@@ -17,10 +17,10 @@
 from pyramid.config import Configurator
 
 from opentelemetry import trace
+from opentelemetry.configuration import Configuration
 from opentelemetry.instrumentation.pyramid import PyramidInstrumentor
 from opentelemetry.test.test_base import TestBase
 from opentelemetry.test.wsgitestutil import WsgiTestBase
-from opentelemetry.util import ExcludeList
 
 # pylint: disable=import-error
 from .pyramid_base_test import InstrumentationTest
@@ -54,6 +54,19 @@ def setUp(self):
 
         self._common_initialization(self.config)
 
+        self.env_patch = patch.dict(
+            "os.environ",
+            {
+                "OTEL_PYTHON_PYRAMID_EXCLUDED_URLS": "http://localhost/excluded_arg/123,excluded_noarg"
+            },
+        )
+        self.env_patch.start()
+        self.exclude_patch = patch(
+            "opentelemetry.instrumentation.pyramid.callbacks._excluded_urls",
+            Configuration()._excluded_urls("pyramid"),
+        )
+        self.exclude_patch.start()
+
     def tearDown(self):
         super().tearDown()
         with self.disable_logging():
@@ -187,10 +200,6 @@ def test_warnings(self, mock_logger):
         self.assertEqual(len(span_list), 0)
         self.assertEqual(mock_logger.warning.called, True)
 
-    @patch(
-        "opentelemetry.instrumentation.pyramid.callbacks._excluded_urls",
-        ExcludeList(["http://localhost/excluded_arg/123", "excluded_noarg"]),
-    )
     def test_exclude_lists(self):
         self.client.get("/excluded_arg/123")
         span_list = self.memory_exporter.get_finished_spans()
diff --git a/instrumentation/opentelemetry-instrumentation-tornado/src/opentelemetry/instrumentation/tornado/__init__.py b/instrumentation/opentelemetry-instrumentation-tornado/src/opentelemetry/instrumentation/tornado/__init__.py
index 6bb956ecb5..d825fbb71b 100644
--- a/instrumentation/opentelemetry-instrumentation-tornado/src/opentelemetry/instrumentation/tornado/__init__.py
+++ b/instrumentation/opentelemetry-instrumentation-tornado/src/opentelemetry/instrumentation/tornado/__init__.py
@@ -56,7 +56,7 @@ def get(self):
 )
 from opentelemetry.trace.propagation.textmap import DictGetter
 from opentelemetry.trace.status import Status
-from opentelemetry.util import ExcludeList, time_ns
+from opentelemetry.util import time_ns
 
 from .client import fetch_async  # pylint: disable=E0401
 
@@ -65,25 +65,9 @@ def get(self):
 _HANDLER_CONTEXT_KEY = "_otel_trace_context_key"
 _OTEL_PATCHED_KEY = "_otel_patched_key"
 
-
-def get_excluded_urls():
-    urls = configuration.Configuration().TORNADO_EXCLUDED_URLS or ""
-    if urls:
-        urls = str.split(urls, ",")
-    return ExcludeList(urls)
-
-
-def get_traced_request_attrs():
-    attrs = configuration.Configuration().TORNADO_TRACED_REQUEST_ATTRS or ""
-    if attrs:
-        attrs = [attr.strip() for attr in attrs.split(",")]
-    else:
-        attrs = []
-    return attrs
-
-
-_excluded_urls = get_excluded_urls()
-_traced_attrs = get_traced_request_attrs()
+cfg = configuration.Configuration()
+_excluded_urls = cfg._excluded_urls("tornado")
+_traced_attrs = cfg._traced_request_attrs("tornado")
 
 carrier_getter = DictGetter()
 
diff --git a/instrumentation/opentelemetry-instrumentation-tornado/tests/test_instrumentation.py b/instrumentation/opentelemetry-instrumentation-tornado/tests/test_instrumentation.py
index 5b429766ec..21002c83cd 100644
--- a/instrumentation/opentelemetry-instrumentation-tornado/tests/test_instrumentation.py
+++ b/instrumentation/opentelemetry-instrumentation-tornado/tests/test_instrumentation.py
@@ -18,6 +18,7 @@
 from tornado.testing import AsyncHTTPTestCase
 
 from opentelemetry import trace
+from opentelemetry.configuration import Configuration
 from opentelemetry.instrumentation.tornado import (
     TornadoInstrumentor,
     patch_handler_class,
@@ -25,7 +26,6 @@
 )
 from opentelemetry.test.test_base import TestBase
 from opentelemetry.trace import SpanKind
-from opentelemetry.util import ExcludeList
 
 from .tornado_test_app import (
     AsyncHandler,
@@ -44,9 +44,32 @@ def get_app(self):
     def setUp(self):
         TornadoInstrumentor().instrument()
         super().setUp()
+        # pylint: disable=protected-access
+        Configuration()._reset()
+        self.env_patch = patch.dict(
+            "os.environ",
+            {
+                "OTEL_PYTHON_TORNADO_EXCLUDED_URLS": "healthz,ping",
+                "OTEL_PYTHON_TORNADO_TRACED_REQUEST_ATTRS": "uri,full_url,query",
+            },
+        )
+        self.env_patch.start()
+        self.exclude_patch = patch(
+            "opentelemetry.instrumentation.tornado._excluded_urls",
+            Configuration()._excluded_urls("tornado"),
+        )
+        self.traced_patch = patch(
+            "opentelemetry.instrumentation.tornado._traced_attrs",
+            Configuration()._traced_request_attrs("tornado"),
+        )
+        self.exclude_patch.start()
+        self.traced_patch.start()
 
     def tearDown(self):
         TornadoInstrumentor().uninstrument()
+        self.env_patch.stop()
+        self.exclude_patch.stop()
+        self.traced_patch.stop()
         super().tearDown()
 
 
@@ -326,10 +349,6 @@ def test_dynamic_handler(self):
             },
         )
 
-    @patch(
-        "opentelemetry.instrumentation.tornado._excluded_urls",
-        ExcludeList(["healthz", "ping"]),
-    )
     def test_exclude_lists(self):
         def test_excluded(path):
             self.fetch(path)
@@ -354,18 +373,14 @@ def test_excluded(path):
         test_excluded("/healthz")
         test_excluded("/ping")
 
-    @patch(
-        "opentelemetry.instrumentation.tornado._traced_attrs",
-        ["uri", "full_url", "query"],
-    )
     def test_traced_attrs(self):
-        self.fetch("/ping?q=abc&b=123")
+        self.fetch("/pong?q=abc&b=123")
         spans = self.sorted_spans(self.memory_exporter.get_finished_spans())
         self.assertEqual(len(spans), 2)
         server_span = spans[0]
         self.assertEqual(server_span.kind, SpanKind.SERVER)
         self.assert_span_has_attributes(
-            server_span, {"uri": "/ping?q=abc&b=123", "query": "q=abc&b=123"}
+            server_span, {"uri": "/pong?q=abc&b=123", "query": "q=abc&b=123"}
         )
         self.memory_exporter.clear()