diff --git a/.github/workflows/build-hw-reusable.yml b/.github/workflows/build-hw-reusable.yml
index 77f696b958..3e332c73fc 100644
--- a/.github/workflows/build-hw-reusable.yml
+++ b/.github/workflows/build-hw-reusable.yml
@@ -7,10 +7,15 @@ on:
       adapter_name:
         required: true
         type: string
+      other_adapter_name:
+        required: false
+        type: string
+        default: ""
       runner_name:
         required: true
         type: string
       platform:
+        description: "Platform string, `UR_CTS_ADAPTER_PLATFORM` will be set to this."
         required: false
         type: string
         default: ""
@@ -39,9 +44,13 @@ jobs:
     if: github.repository == 'oneapi-src/unified-runtime'  # run only on upstream; forks won't have the HW
     strategy:
       matrix:
-        adapter: [
-          {name: "${{inputs.adapter_name}}", platform: "${{inputs.platform}}", static_Loader: "${{inputs.static_loader}}", static_adapter: "${{inputs.static_loader}}"},
-        ]
+        adapter: [{
+          name: "${{inputs.adapter_name}}",
+          other_name: "${{inputs.other_adapter_name}}",
+          platform: "${{inputs.platform}}",
+          static_Loader: "${{inputs.static_loader}}",
+          static_adapter: "${{inputs.static_loader}}"
+        }]
         build_type: [Debug, Release]
         compiler: [{c: gcc, cxx: g++}, {c: clang, cxx: clang++}]
         # TODO: The latest L0 loader segfaults when built with clang.
@@ -82,8 +91,9 @@ jobs:
         -DUR_ENABLE_TRACING=ON
         -DUR_DEVELOPER_MODE=ON
         -DUR_BUILD_TESTS=ON
-        -DUR_CONFORMANCE_TEST_LOADER=OFF
         -DUR_BUILD_ADAPTER_${{matrix.adapter.name}}=ON
+        -DUR_CONFORMANCE_TEST_LOADER=${{ matrix.adapter.other_name != '' && 'ON' || 'OFF' }}
+        ${{ matrix.adapter.other_name != '' && format('-DUR_BUILD_ADAPTER_{0}=ON', matrix.adapter.other_name) || '' }}
         -DUR_STATIC_LOADER=${{matrix.adapter.static_Loader}}
         -DUR_STATIC_ADAPTER_${{matrix.adapter.name}}=${{matrix.adapter.static_adapter}}
         -DUR_DPCXX=${{github.workspace}}/dpcpp_compiler/bin/clang++
@@ -103,6 +113,8 @@ jobs:
     - name: Test adapter specific
       working-directory: ${{github.workspace}}/build
       run: ctest -C ${{matrix.build_type}} --output-on-failure -L "adapter-specific" --timeout 180
+      # Don't run adapter specific tests when building multiple adapters
+      if: ${{ matrix.adapter.other_name == '' }}
 
     - name: Test adapters
       working-directory: ${{github.workspace}}/build
diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 8c0e3bac86..0ed1799fbe 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -187,6 +187,24 @@ jobs:
       adapter_name: NATIVE_CPU
       runner_name: NATIVE_CPU
 
+  # Native CPU jobs are here to force the loader to be used (UR will not use the loader if there is only one target)
+  combined-opencl-native-cpu:
+    name: OpenCL + Native CPU (Loader)
+    uses: ./.github/workflows/build-hw-reusable.yml
+    with:
+      adapter_name: OPENCL
+      other_adapter_name: NATIVE_CPU
+      runner_name: OPENCL
+      platform: "OPENCL:Intel(R) OpenCL"
+
+  combined-level-zero-native-cpu:
+    name: Level Zero + Native CPU (Loader)
+    uses: ./.github/workflows/build-hw-reusable.yml
+    with:
+      adapter_name: L0
+      other_adapter_name: NATIVE_CPU
+      runner_name: L0
+
   e2e-level-zero:
     name: E2E L0
     permissions:
diff --git a/test/conformance/adapter/adapter_adapter_native_cpu.match b/test/conformance/adapter/adapter_adapter_native_cpu.match
index 1335caf904..91d8e62787 100644
--- a/test/conformance/adapter/adapter_adapter_native_cpu.match
+++ b/test/conformance/adapter/adapter_adapter_native_cpu.match
@@ -1,5 +1,6 @@
 {{NONDETERMINISTIC}}
-urAdapterGetLastErrorTest.Success
-urAdapterGetLastErrorTest.InvalidHandle
-urAdapterGetLastErrorTest.InvalidMessagePtr
-urAdapterGetLastErrorTest.InvalidErrorPtr
+# These pass when the adapter is launched by the loader
+{{OPT}}urAdapterGetLastErrorTest.Success
+{{OPT}}urAdapterGetLastErrorTest.InvalidHandle
+{{OPT}}urAdapterGetLastErrorTest.InvalidMessagePtr
+{{OPT}}urAdapterGetLastErrorTest.InvalidErrorPtr
diff --git a/test/conformance/event/event_adapter_native_cpu.match b/test/conformance/event/event_adapter_native_cpu.match
index 17066b6d52..95b8228e1f 100644
--- a/test/conformance/event/event_adapter_native_cpu.match
+++ b/test/conformance/event/event_adapter_native_cpu.match
@@ -1,4 +1,4 @@
-{{NONDETERMINISTIC}}
+# Note: This file is only for use with cts_exe.py
 urEventGetInfoTest.Success/SYCL_NATIVE_CPU___SYCL_Native_CPU__{{.*}}__UR_EVENT_INFO_COMMAND_QUEUE
 urEventGetInfoTest.Success/SYCL_NATIVE_CPU___SYCL_Native_CPU__{{.*}}__UR_EVENT_INFO_CONTEXT
 urEventGetInfoTest.Success/SYCL_NATIVE_CPU___SYCL_Native_CPU__{{.*}}__UR_EVENT_INFO_COMMAND_TYPE
@@ -31,3 +31,9 @@ urEventSetCallbackTest.AllStates/SYCL_NATIVE_CPU___SYCL_Native_CPU__{{.*}}
 urEventSetCallbackTest.EventAlreadyCompleted/SYCL_NATIVE_CPU___SYCL_Native_CPU__{{.*}}
 urEventSetCallbackNegativeTest.InvalidNullPointerCallback/SYCL_NATIVE_CPU___SYCL_Native_CPU__{{.*}}
 urEventSetCallbackNegativeTest.InvalidEnumeration/SYCL_NATIVE_CPU___SYCL_Native_CPU__{{.*}}
+
+# These crash when ran through the loader
+{{OPT}}urEventRetainTest.InvalidNullHandle/*
+{{OPT}}urEventReleaseTest.InvalidNullHandle/*
+{{OPT}}urEventGetNativeHandleTest.InvalidNullHandleEvent/*
+{{OPT}}urEventSetCallbackNegativeTest.InvalidNullHandleEvent/*
diff --git a/test/conformance/event/event_adapter_opencl.match b/test/conformance/event/event_adapter_opencl.match
new file mode 100644
index 0000000000..2c65414d2d
--- /dev/null
+++ b/test/conformance/event/event_adapter_opencl.match
@@ -0,0 +1,3 @@
+# Note: This file is only for use with cts_exe.py, not the legacy match checker
+# These crash when ran through the loader
+{{OPT}}urEventSetCallbackTest.ValidateParameters/*