diff --git a/google/cloud/bigquery/analyticshub/v1/BUILD.bazel b/google/cloud/bigquery/analyticshub/v1/BUILD.bazel
index 83e144934c737..a834c59405d1b 100644
--- a/google/cloud/bigquery/analyticshub/v1/BUILD.bazel
+++ b/google/cloud/bigquery/analyticshub/v1/BUILD.bazel
@@ -9,14 +9,17 @@
 #    * extra_protoc_file_parameters
 # The complete list of preserved parameters can be found in the source code.
 
+# buildifier: disable=load-on-top
+
 # This is an API workspace, having public visibility by default makes perfect sense.
 package(default_visibility = ["//visibility:public"])
 
 ##############################################################################
 # Common
 ##############################################################################
-load("@rules_proto//proto:defs.bzl", "proto_library")
+# buildifier: disable=same-origin-load
 load("@com_google_googleapis_imports//:imports.bzl", "proto_library_with_info")
+load("@rules_proto//proto:defs.bzl", "proto_library")
 
 proto_library(
     name = "analyticshub_proto",
@@ -49,6 +52,7 @@ proto_library_with_info(
 ##############################################################################
 # Java
 ##############################################################################
+# buildifier: disable=same-origin-load
 load(
     "@com_google_googleapis_imports//:imports.bzl",
     "java_gapic_assembly_gradle_pkg",
@@ -77,8 +81,8 @@ java_gapic_library(
     rest_numeric_enums = False,
     service_yaml = "analyticshub_v1.yaml",
     test_deps = [
-        "//google/iam/v1:iam_java_grpc",
         ":analyticshub_java_grpc",
+        "//google/iam/v1:iam_java_grpc",
     ],
     transport = "grpc+rest",
     deps = [
@@ -113,6 +117,7 @@ java_gapic_assembly_gradle_pkg(
 ##############################################################################
 # Go
 ##############################################################################
+# buildifier: disable=same-origin-load
 load(
     "@com_google_googleapis_imports//:imports.bzl",
     "go_gapic_assembly_pkg",
@@ -166,6 +171,7 @@ go_gapic_assembly_pkg(
 ##############################################################################
 # Python
 ##############################################################################
+# buildifier: disable=same-origin-load
 load(
     "@com_google_googleapis_imports//:imports.bzl",
     "py_gapic_assembly_pkg",
@@ -210,6 +216,7 @@ py_gapic_assembly_pkg(
 ##############################################################################
 # PHP
 ##############################################################################
+# buildifier: disable=same-origin-load
 load(
     "@com_google_googleapis_imports//:imports.bzl",
     "php_gapic_assembly_pkg",
@@ -247,6 +254,7 @@ php_gapic_assembly_pkg(
 ##############################################################################
 # Node.js
 ##############################################################################
+# buildifier: disable=same-origin-load
 load(
     "@com_google_googleapis_imports//:imports.bzl",
     "nodejs_gapic_assembly_pkg",
@@ -277,6 +285,7 @@ nodejs_gapic_assembly_pkg(
 ##############################################################################
 # Ruby
 ##############################################################################
+# buildifier: disable=same-origin-load
 load(
     "@com_google_googleapis_imports//:imports.bzl",
     "ruby_cloud_gapic_library",
@@ -330,6 +339,7 @@ ruby_gapic_assembly_pkg(
 ##############################################################################
 # C#
 ##############################################################################
+# buildifier: disable=same-origin-load
 load(
     "@com_google_googleapis_imports//:imports.bzl",
     "csharp_gapic_assembly_pkg",
@@ -340,7 +350,6 @@ load(
 
 csharp_proto_library(
     name = "analyticshub_csharp_proto",
-    extra_opts = [],
     deps = [":analyticshub_proto"],
 )
 
@@ -357,6 +366,7 @@ csharp_gapic_library(
     grpc_service_config = "analyticshub_v1_grpc_service_config.json",
     rest_numeric_enums = False,
     service_yaml = "analyticshub_v1.yaml",
+    transport = "grpc+rest",
     deps = [
         ":analyticshub_csharp_grpc",
         ":analyticshub_csharp_proto",
@@ -376,6 +386,7 @@ csharp_gapic_assembly_pkg(
 ##############################################################################
 # C++
 ##############################################################################
+# buildifier: disable=same-origin-load
 load(
     "@com_google_googleapis_imports//:imports.bzl",
     "cc_grpc_library",
diff --git a/google/cloud/bigquery/analyticshub/v1/analyticshub.proto b/google/cloud/bigquery/analyticshub/v1/analyticshub.proto
index b947b88f3ce1a..5f4d87bb042cd 100644
--- a/google/cloud/bigquery/analyticshub/v1/analyticshub.proto
+++ b/google/cloud/bigquery/analyticshub/v1/analyticshub.proto
@@ -39,6 +39,10 @@ option (google.api.resource_definition) = {
   type: "bigquery.googleapis.com/Dataset"
   pattern: "projects/{project}/datasets/{dataset}"
 };
+option (google.api.resource_definition) = {
+  type: "bigquery.googleapis.com/Table"
+  pattern: "projects/{project}/datasets/{dataset}/tables/{table}"
+};
 
 // The `AnalyticsHubService` API facilitates data sharing within and across
 // organizations. It allows data providers to publish listings that reference
@@ -256,6 +260,10 @@ service AnalyticsHubService {
         post: "/v1/{resource=projects/*/locations/*/dataExchanges/*/listings/*}:getIamPolicy"
         body: "*"
       }
+      additional_bindings {
+        post: "/v1/{resource=projects/*/locations/*/subscriptions/*}:getIamPolicy"
+        body: "*"
+      }
     };
   }
 
@@ -269,6 +277,10 @@ service AnalyticsHubService {
         post: "/v1/{resource=projects/*/locations/*/dataExchanges/*/listings/*}:setIamPolicy"
         body: "*"
       }
+      additional_bindings {
+        post: "/v1/{resource=projects/*/locations/*/subscriptions/*}:setIamPolicy"
+        body: "*"
+      }
     };
   }
 
@@ -341,7 +353,24 @@ message SharingEnvironmentConfig {
   message DefaultExchangeConfig {}
 
   // Data Clean Room (DCR), used for privacy-safe and secured data sharing.
-  message DcrExchangeConfig {}
+  message DcrExchangeConfig {
+    // Output only. If True, this DCR restricts the contributors to sharing
+    // only a single resource in a Listing. And no two resources should have the
+    // same IDs. So if a contributor adds a view with a conflicting name, the
+    // CreateListing API will reject the request. if False, the data contributor
+    // can publish an entire dataset (as before). This is not configurable, and
+    // by default, all new DCRs will have the restriction set to True.
+    optional bool single_selected_resource_sharing_restriction = 1
+        [(google.api.field_behavior) = OUTPUT_ONLY];
+
+    // Output only. If True, when subscribing to this DCR, it will create only
+    // one linked dataset containing all resources shared within the
+    // cleanroom. If False, when subscribing to this DCR, it will
+    // create 1 linked dataset per listing. This is not configurable, and by
+    // default, all new DCRs will have the restriction set to True.
+    optional bool single_linked_dataset_per_cleanroom = 2
+        [(google.api.field_behavior) = OUTPUT_ONLY];
+  }
 
   oneof environment {
     // Default Analytics Hub data exchange, used for secured data sharing.
@@ -428,11 +457,33 @@ message Listing {
   // the subscriber's project. A Linked dataset is an opaque, read-only BigQuery
   // dataset that serves as a _symbolic link_ to a shared dataset.
   message BigQueryDatasetSource {
+    // Resource in this dataset that are selectively shared.
+    message SelectedResource {
+      oneof resource {
+        // Optional. Format:
+        // For table:
+        // `projects/{projectId}/datasets/{datasetId}/tables/{tableId}`
+        // Example:"projects/test_project/datasets/test_dataset/tables/test_table"
+        string table = 1 [
+          (google.api.field_behavior) = OPTIONAL,
+          (google.api.resource_reference) = {
+            type: "bigquery.googleapis.com/Table"
+          }
+        ];
+      }
+    }
+
     // Resource name of the dataset source for this listing.
     // e.g. `projects/myproject/datasets/123`
     string dataset = 1 [(google.api.resource_reference) = {
       type: "bigquery.googleapis.com/Dataset"
     }];
+
+    // Optional. Resources in this dataset that are selectively shared.
+    // If this field is empty, then the entire dataset (all resources) are
+    // shared. This field is only valid for data clean room exchanges.
+    repeated SelectedResource selected_resources = 2
+        [(google.api.field_behavior) = OPTIONAL];
   }
 
   // Restricted export config, used to configure restricted export on linked