diff --git a/libwvdrmengine/cdm/core/include/client_identification.h b/libwvdrmengine/cdm/core/include/client_identification.h
index 76fcde5e..dd9d3e57 100644
--- a/libwvdrmengine/cdm/core/include/client_identification.h
+++ b/libwvdrmengine/cdm/core/include/client_identification.h
@@ -37,10 +37,14 @@ class ClientIdentification {
   // |app_parameters| parameters provided by client/app to be included in
   //                  provisioning/license request. optional, only used
   //                  if |is_license_request| is true
+  // |provider_client_token| optional parameter specified by the content
+  //                         and included in the license. Only used if
+  //                         specified and if |is_license_request| is true
   // |client_id| Portion of license/provisioning request that needs to be
   //             populated.
   virtual CdmResponseType Prepare(
       const CdmAppParameterMap& app_parameters,
+      const std::string& provider_client_token,
       video_widevine::ClientIdentification* client_id);
 
  private:
diff --git a/libwvdrmengine/cdm/core/include/license.h b/libwvdrmengine/cdm/core/include/license.h
index 5807aa4d..f28b5f71 100644
--- a/libwvdrmengine/cdm/core/include/license.h
+++ b/libwvdrmengine/cdm/core/include/license.h
@@ -84,6 +84,7 @@ class CdmLicense {
 
   CdmResponseType PrepareClientId(
       const CdmAppParameterMap& app_parameters,
+      const std::string& provider_client_token,
       video_widevine::LicenseRequest* license_request);
 
   CdmResponseType PrepareContentId(
@@ -148,6 +149,9 @@ class CdmLicense {
 
   CdmLicenseKeyType license_key_type_;
   RepeatedPtrField<License_KeyContainer> entitlement_keys_;
+
+  std::string provider_client_token_;
+
 #if defined(UNIT_TEST)
   friend class CdmLicenseTestPeer;
 #endif
diff --git a/libwvdrmengine/cdm/core/src/certificate_provisioning.cpp b/libwvdrmengine/cdm/core/src/certificate_provisioning.cpp
index f9cefd58..300b8b0f 100644
--- a/libwvdrmengine/cdm/core/src/certificate_provisioning.cpp
+++ b/libwvdrmengine/cdm/core/src/certificate_provisioning.cpp
@@ -15,6 +15,8 @@
 
 namespace {
 
+const std::string kEmptyString;
+
 // URL for Google Provisioning Server.
 // The provisioning server supplies the certificate that is needed
 // to communicate with the License Server.
@@ -200,7 +202,7 @@ CdmResponseType CertificateProvisioning::GetProvisioningRequest(
       provisioning_request.mutable_client_id();
 
   CdmAppParameterMap app_parameter;
-  status = id.Prepare(app_parameter, client_id);
+  status = id.Prepare(app_parameter, kEmptyString, client_id);
   if (status != NO_ERROR) return status;
 
   if (!service_certificate_->has_certificate()) {
diff --git a/libwvdrmengine/cdm/core/src/client_identification.cpp b/libwvdrmengine/cdm/core/src/client_identification.cpp
index 250d5194..447a276c 100644
--- a/libwvdrmengine/cdm/core/src/client_identification.cpp
+++ b/libwvdrmengine/cdm/core/src/client_identification.cpp
@@ -73,6 +73,7 @@ CdmResponseType ClientIdentification::Init(const std::string& client_token,
  */
 CdmResponseType ClientIdentification::Prepare(
     const CdmAppParameterMap& app_parameters,
+    const std::string& provider_client_token,
     video_widevine::ClientIdentification* client_id) {
 
   if (is_license_request_) {
@@ -147,6 +148,10 @@ CdmResponseType ClientIdentification::Prepare(
   ss << (uint32_t)crypto_session_->GetSecurityPatchLevel();
   client_info->set_value(ss.str());
 
+  if (!provider_client_token.empty()) {
+    client_id->set_provider_client_token(provider_client_token);
+  }
+
   ClientIdentification_ClientCapabilities* client_capabilities =
       client_id->mutable_client_capabilities();
 
diff --git a/libwvdrmengine/cdm/core/src/license.cpp b/libwvdrmengine/cdm/core/src/license.cpp
index 58268ad1..d4c21ec8 100644
--- a/libwvdrmengine/cdm/core/src/license.cpp
+++ b/libwvdrmengine/cdm/core/src/license.cpp
@@ -23,12 +23,15 @@
 #include "wv_cdm_constants.h"
 
 namespace {
+
 const uint32_t kFourCcCbc1 = 0x63626331;
 const uint32_t kFourCcCbcs = 0x63626373;
 const uint32_t kFourCcLittleEndianCbc1 = 0x31636263;
 const uint32_t kFourCcLittleEndianCbcs = 0x73636263;
 const uint32_t kFourCcCenc = 0x63656e63;
 
+const std::string kEmptyString;
+
 }  // namespace
 
 namespace wvcdm {
@@ -304,7 +307,7 @@ CdmResponseType CdmLicense::PrepareKeyRequest(
 
   LicenseRequest license_request;
   CdmResponseType status;
-  status = PrepareClientId(app_parameters, &license_request);
+  status = PrepareClientId(app_parameters, kEmptyString, &license_request);
   if (NO_ERROR != status) return status;
 
   status =
@@ -398,7 +401,9 @@ CdmResponseType CdmLicense::PrepareKeyUpdateRequest(
   license_request.set_request_time(clock_->GetCurrentTime());
 
   if (renew_with_client_id_) {
-    CdmResponseType status = PrepareClientId(app_parameters, &license_request);
+    CdmResponseType status =
+        PrepareClientId(app_parameters, provider_client_token_,
+                        &license_request);
     if (NO_ERROR != status) return status;
   }
 
@@ -577,6 +582,7 @@ CdmResponseType CdmLicense::HandleKeyResponse(
     return NO_CONTENT_KEY;
   }
   license_key_type_ = key_type;
+  provider_client_token_ = license.provider_client_token();
 
   if (license.has_srm_update()) crypto_session_->LoadSrm(license.srm_update());
 
@@ -930,14 +936,16 @@ CdmResponseType CdmLicense::HandleKeyErrorResponse(
 }
 
 CdmResponseType CdmLicense::PrepareClientId(
-    const CdmAppParameterMap& app_parameters, LicenseRequest* license_request) {
+    const CdmAppParameterMap& app_parameters,
+    const std::string& provider_client_token,
+    LicenseRequest* license_request) {
   wvcdm::ClientIdentification id;
   CdmResponseType status = id.Init(client_token_, device_id_, crypto_session_);
   if (status != NO_ERROR) return status;
 
   video_widevine::ClientIdentification* client_id =
       license_request->mutable_client_id();
-  status = id.Prepare(app_parameters, client_id);
+  status = id.Prepare(app_parameters, provider_client_token, client_id);
   if (status != NO_ERROR) return status;
 
   if (Properties::UsePrivacyMode(session_id_)) {
diff --git a/libwvdrmengine/cdm/test/request_license_test.cpp b/libwvdrmengine/cdm/test/request_license_test.cpp
index 7295b731..310d17c5 100644
--- a/libwvdrmengine/cdm/test/request_license_test.cpp
+++ b/libwvdrmengine/cdm/test/request_license_test.cpp
@@ -3981,6 +3981,115 @@ TEST_F(WvCdmRequestLicenseTest, UsageRemoveSecureStopTest) {
   EXPECT_TRUE(secure_stop_ids.empty());
 }
 
+// TODO(rfrias): Enable when b/123370099 has been addressed
+TEST_F(WvCdmRequestLicenseTest, DISABLED_VerifyProviderClientToken) {
+  Unprovision();
+  Provision(kLevelDefault);
+
+  // The default offline asset "offline_clip2" does not include a
+  // provider session token but "offline_clip5" does, so replace the last
+  // char in init data with '5'
+  std::string key_id;
+  std::string client_auth;
+  GetOfflineConfiguration(&key_id, &client_auth);
+  key_id[key_id.size()-1] = '5';
+
+  // Acquire license
+  decryptor_.OpenSession(config_.key_system(), NULL, kDefaultCdmIdentifier,
+                         NULL, &session_id_);
+  GenerateKeyRequest(key_id, kLicenseTypeOffline);
+  EXPECT_TRUE(!key_msg_.empty());
+  std::string key_msg = key_msg_;
+  std::string key_response;
+  VerifyKeyRequestResponse(config_.license_server(), client_auth, false,
+                           &key_response);
+
+  CdmKeySetId key_set_id = key_set_id_;
+  EXPECT_TRUE(!key_set_id_.empty());
+  EXPECT_TRUE(!key_response.empty());
+
+  // Validate signed license request
+  SignedMessage signed_message;
+  EXPECT_TRUE(signed_message.ParseFromString(key_msg));
+  EXPECT_EQ(SignedMessage::LICENSE_REQUEST, signed_message.type());
+  EXPECT_TRUE(signed_message.has_signature());
+  EXPECT_TRUE(!signed_message.msg().empty());
+
+  // Verify license request
+  video_widevine::LicenseRequest license_request;
+  EXPECT_TRUE(license_request.ParseFromString(signed_message.msg()));
+
+  // Verify that the provider client token is absent in the license request
+  EXPECT_FALSE(license_request.client_id().has_provider_client_token());
+  EXPECT_TRUE(license_request.client_id().provider_client_token().empty());
+
+  // Validate signed license response
+  EXPECT_TRUE(signed_message.ParseFromString(key_response));
+  EXPECT_EQ(SignedMessage::LICENSE, signed_message.type());
+  EXPECT_TRUE(signed_message.has_signature());
+  EXPECT_TRUE(!signed_message.msg().empty());
+
+  // Verify license
+  video_widevine::License license;
+  EXPECT_TRUE(license.ParseFromString(signed_message.msg()));
+
+  // Verify that the provider client token is present in the license
+  EXPECT_TRUE(license.has_provider_client_token());
+  EXPECT_TRUE(!license.provider_client_token().empty());
+
+  decryptor_.CloseSession(session_id_);
+  session_id_.clear();
+
+  // Restore offline license and renew it
+  decryptor_.OpenSession(config_.key_system(), NULL, kDefaultCdmIdentifier,
+                         NULL, &session_id_);
+  EXPECT_EQ(wvcdm::KEY_ADDED, decryptor_.RestoreKey(session_id_, key_set_id));
+
+  std::string license_server;
+  GenerateRenewalRequest(kLicenseTypeOffline, &license_server);
+  EXPECT_TRUE(!key_msg_.empty());
+  key_msg = key_msg_;
+  EXPECT_FALSE(license_server.empty());
+  VerifyKeyRequestResponse(license_server, client_auth);
+
+  // Validate signed license renewal request
+  EXPECT_TRUE(signed_message.ParseFromString(key_msg));
+  EXPECT_EQ(SignedMessage::LICENSE_REQUEST, signed_message.type());
+  EXPECT_TRUE(signed_message.has_signature());
+  EXPECT_TRUE(!signed_message.msg().empty());
+
+  // Verify license renewal request
+  EXPECT_TRUE(license_request.ParseFromString(signed_message.msg()));
+
+  // Verify provider client token is present in the license renewal request
+  EXPECT_TRUE(license_request.client_id().has_provider_client_token());
+  EXPECT_TRUE(!license_request.client_id().provider_client_token().empty());
+
+  decryptor_.CloseSession(session_id_);
+  session_id_.clear();
+
+  // Restore and release offline license
+  key_set_id_.clear();
+  GenerateKeyRelease(key_set_id);
+  key_set_id_ = key_set_id;
+  EXPECT_TRUE(!key_msg_.empty());
+  key_msg = key_msg_;
+  VerifyKeyRequestResponse(config_.license_server(), client_auth);
+
+  // Validate signed license release request
+  EXPECT_TRUE(signed_message.ParseFromString(key_msg));
+  EXPECT_EQ(SignedMessage::LICENSE_REQUEST, signed_message.type());
+  EXPECT_TRUE(signed_message.has_signature());
+  EXPECT_TRUE(!signed_message.msg().empty());
+
+  // Verify license release request
+  EXPECT_TRUE(license_request.ParseFromString(signed_message.msg()));
+
+  // Verify provider client token is present in the license release request
+  EXPECT_TRUE(license_request.client_id().has_provider_client_token());
+  EXPECT_TRUE(!license_request.client_id().provider_client_token().empty());
+}
+
 TEST_F(WvCdmRequestLicenseTest, QueryUnmodifiedSessionStatus) {
   // Test that the global value is returned when no properties are modifying it.
   std::string security_level;