diff --git a/test/conformance/channel_spec_test.go b/test/conformance/channel_spec_test.go
new file mode 100644
index 00000000000..ec137d2a93b
--- /dev/null
+++ b/test/conformance/channel_spec_test.go
@@ -0,0 +1,30 @@
+// +build e2e
+
+/*
+Copyright 2020 The Knative Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package conformance
+
+import (
+	"testing"
+
+	"knative.dev/eventing/test/conformance/helpers"
+	"knative.dev/eventing/test/lib"
+)
+
+func TestChannelSpec(t *testing.T) {
+	helpers.ChannelSpecTestHelperWithChannelTestRunner(t, channelTestRunner, lib.SetupClientOptionNoop)
+}
diff --git a/test/conformance/helpers/channel_spec_test_helper.go b/test/conformance/helpers/channel_spec_test_helper.go
new file mode 100644
index 00000000000..506358fd67e
--- /dev/null
+++ b/test/conformance/helpers/channel_spec_test_helper.go
@@ -0,0 +1,132 @@
+/*
+Copyright 2020 The Knative Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package helpers
+
+import (
+	"testing"
+
+	"encoding/json"
+
+	"k8s.io/apimachinery/pkg/api/meta"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apiserver/pkg/storage/names"
+
+	eventingduckv1alpha1 "knative.dev/eventing/pkg/apis/duck/v1alpha1"
+	eventingduckv1beta1 "knative.dev/eventing/pkg/apis/duck/v1beta1"
+	"knative.dev/eventing/test/lib"
+	"knative.dev/pkg/apis"
+)
+
+func ChannelSpecTestHelperWithChannelTestRunner(
+	t *testing.T,
+	channelTestRunner lib.ChannelTestRunner,
+	options ...lib.SetupClientOption,
+) {
+
+	channelTestRunner.RunTests(t, lib.FeatureBasic, func(st *testing.T, channel metav1.TypeMeta) {
+		client := lib.Setup(st, true, options...)
+		defer lib.TearDown(client)
+
+		t.Run("Channel spec allows subscribers", func(t *testing.T) {
+			channelSpecAllowsRequiredFields(st, client, channel)
+		})
+	})
+}
+
+func channelSpecAllowsRequiredFields(st *testing.T, client *lib.Client, channel metav1.TypeMeta, options ...lib.SetupClientOption) {
+	st.Logf("Running channel spec conformance test with channel %q", channel)
+
+	dtsv, err := getChannelDuckTypeSupportVersionFromTypeMeta(client, channel)
+	if err != nil {
+		st.Fatalf("Unable to check Channel duck type support version for %q: %q", channel, err)
+	}
+
+	channelName := names.SimpleNameGenerator.GenerateName("channel-spec-req-fields-")
+	client.T.Logf("Creating channel %+v-%s", channel, channelName)
+	client.CreateChannelOrFail(channelName, &channel)
+	client.WaitForResourceReadyOrFail(channelName, &channel)
+
+	sampleUrl, _ := apis.ParseURL("http://example.com")
+	gvr, _ := meta.UnsafeGuessKindToResource(channel.GroupVersionKind())
+
+	var ch interface{}
+
+	if dtsv == "" || dtsv == "v1alpha1" {
+		// treat missing annotation value as v1alpha1, as written in the spec
+		channelable, err := getChannelAsV1Alpha1Channelable(channelName, client, channel)
+		if err != nil {
+			st.Fatalf("Unable to get channel %q to v1alpha1 duck type: %q", channel, err)
+		}
+
+		// SPEC: each channel CRD MUST contain an array of subscribers: spec.subscribable.subscribers
+		channelable.Spec.Subscribable = &eventingduckv1alpha1.Subscribable{
+			Subscribers: []eventingduckv1alpha1.SubscriberSpec{
+				{
+					UID:      "1234",
+					ReplyURI: sampleUrl,
+				},
+			},
+		}
+
+		ch = channelable
+
+	} else if dtsv == "v1beta1" {
+		channelable, err := getChannelAsV1Beta1Channelable(channelName, client, channel)
+		if err != nil {
+			st.Fatalf("Unable to get channel %q to v1beta1 duck type: %q", channel, err)
+		}
+
+		// SPEC: each channel CRD MUST contain an array of subscribers: spec.subscribers
+		channelable.Spec.Subscribers = []eventingduckv1beta1.SubscriberSpec{
+			{
+				UID:      "1234",
+				ReplyURI: sampleUrl,
+			},
+		}
+
+		ch = channelable
+	} else {
+		st.Fatalf("Channel doesn't support v1alpha1 nor v1beta1 Channel duck types: %q", channel)
+	}
+
+	raw, err := json.Marshal(ch)
+	if err != nil {
+		st.Fatalf("Error marshaling %q: %q", channel, err)
+	}
+	u := &unstructured.Unstructured{}
+	err = json.Unmarshal(raw, u)
+	if err != nil {
+		st.Fatalf("Error unmarshaling %q: %q", u, err)
+	}
+
+	_, err = client.Dynamic.Resource(gvr).Namespace(client.Namespace).Update(u, metav1.UpdateOptions{})
+	if err != nil {
+		st.Fatalf("Error updating %q with subscribers in spec: %q", channel, err)
+	}
+}
+
+func getChannelDuckTypeSupportVersionFromTypeMeta(client *lib.Client, channel metav1.TypeMeta) (string, error) {
+	// the only way is to create one and see
+	channelName := names.SimpleNameGenerator.GenerateName("channel-tmp-")
+
+	client.T.Logf("Creating channel %+v-%s", channel, channelName)
+	client.CreateChannelOrFail(channelName, &channel)
+	client.WaitForResourceReadyOrFail(channelName, &channel)
+
+	return getChannelDuckTypeSupportVersion(channelName, client, &channel)
+}