diff --git a/quic/core/crypto/tls_server_connection.cc b/quic/core/crypto/tls_server_connection.cc
index f4d0ac2..2157778 100644
--- a/quic/core/crypto/tls_server_connection.cc
+++ b/quic/core/crypto/tls_server_connection.cc
@@ -36,9 +36,8 @@
   } else {
     QUIC_RESTART_FLAG_COUNT_N(quic_session_tickets_always_enabled, 3, 3);
   }
-  if (GetQuicRestartFlag(quic_enable_zero_rtt_for_tls_v2) &&
-      (proof_source->GetTicketCrypter() ||
-       GetQuicRestartFlag(quic_session_tickets_always_enabled))) {
+  if (proof_source->GetTicketCrypter() ||
+      GetQuicRestartFlag(quic_session_tickets_always_enabled)) {
     SSL_CTX_set_early_data_enabled(ssl_ctx.get(), 1);
   }
   SSL_CTX_set_select_certificate_cb(
diff --git a/quic/core/http/end_to_end_test.cc b/quic/core/http/end_to_end_test.cc
index 2000733..7e9a679 100644
--- a/quic/core/http/end_to_end_test.cc
+++ b/quic/core/http/end_to_end_test.cc
@@ -198,7 +198,6 @@
     AddToCache("/foo", 200, kFooResponseBody);
     AddToCache("/bar", 200, kBarResponseBody);
     // Enable fixes for bugs found in tests and prod.
-    SetQuicRestartFlag(quic_enable_zero_rtt_for_tls_v2, true);
   }
 
   ~EndToEndTest() override { QuicRecyclePort(server_address_.port()); }
diff --git a/quic/core/http/quic_server_session_base.cc b/quic/core/http/quic_server_session_base.cc
index f91146b..9e0e146 100644
--- a/quic/core/http/quic_server_session_base.cc
+++ b/quic/core/http/quic_server_session_base.cc
@@ -40,9 +40,7 @@
   crypto_stream_ =
       CreateQuicCryptoServerStream(crypto_config_, compressed_certs_cache_);
   QuicSpdySession::Initialize();
-  if (GetQuicRestartFlag(quic_enable_zero_rtt_for_tls_v2)) {
-    SendSettingsToCryptoStream();
-  }
+  SendSettingsToCryptoStream();
 }
 
 void QuicServerSessionBase::OnConfigNegotiated() {
diff --git a/quic/core/http/quic_spdy_client_session_test.cc b/quic/core/http/quic_spdy_client_session_test.cc
index e2b5003..0f17d59 100644
--- a/quic/core/http/quic_spdy_client_session_test.cc
+++ b/quic/core/http/quic_spdy_client_session_test.cc
@@ -97,7 +97,6 @@
             QuicUtils::GetInvalidStreamId(GetParam().transport_version)) {
     auto client_cache = std::make_unique<test::SimpleSessionCache>();
     client_session_cache_ = client_cache.get();
-    SetQuicRestartFlag(quic_enable_zero_rtt_for_tls_v2, true);
     client_crypto_config_ = std::make_unique<QuicCryptoClientConfig>(
         crypto_test_utils::ProofVerifierForTesting(), std::move(client_cache));
     server_crypto_config_ = crypto_test_utils::CryptoServerConfigForTesting();
diff --git a/quic/core/http/quic_spdy_session.cc b/quic/core/http/quic_spdy_session.cc
index e8a473f..3bce452 100644
--- a/quic/core/http/quic_spdy_session.cc
+++ b/quic/core/http/quic_spdy_session.cc
@@ -1085,8 +1085,7 @@
             << value;
         // Communicate |value| to encoder, because it is used for encoding
         // Required Insert Count.
-        bool success = qpack_encoder_->SetMaximumDynamicTableCapacity(value);
-        if (GetQuicRestartFlag(quic_enable_zero_rtt_for_tls_v2) && !success) {
+        if (!qpack_encoder_->SetMaximumDynamicTableCapacity(value)) {
           CloseConnectionWithDetails(
               was_zero_rtt_rejected()
                   ? QUIC_HTTP_ZERO_RTT_REJECTION_SETTINGS_MISMATCH
@@ -1109,8 +1108,7 @@
         QUIC_DVLOG(1) << ENDPOINT
                       << "SETTINGS_MAX_FIELD_SECTION_SIZE received with value "
                       << value;
-        if (GetQuicRestartFlag(quic_enable_zero_rtt_for_tls_v2) &&
-            max_outbound_header_list_size_ !=
+        if (max_outbound_header_list_size_ !=
                 std::numeric_limits<size_t>::max() &&
             max_outbound_header_list_size_ > value) {
           CloseConnectionWithDetails(
@@ -1131,8 +1129,7 @@
         QUIC_DVLOG(1) << ENDPOINT
                       << "SETTINGS_QPACK_BLOCKED_STREAMS received with value "
                       << value;
-        bool success = qpack_encoder_->SetMaximumBlockedStreams(value);
-        if (GetQuicRestartFlag(quic_enable_zero_rtt_for_tls_v2) && !success) {
+        if (!qpack_encoder_->SetMaximumBlockedStreams(value)) {
           CloseConnectionWithDetails(
               was_zero_rtt_rejected()
                   ? QUIC_HTTP_ZERO_RTT_REJECTION_SETTINGS_MISMATCH
diff --git a/quic/core/quic_flags_list.h b/quic/core/quic_flags_list.h
index aa5f569..9140195 100644
--- a/quic/core/quic_flags_list.h
+++ b/quic/core/quic_flags_list.h
@@ -68,7 +68,6 @@
 QUIC_FLAG(FLAGS_quic_reloadable_flag_send_quic_fallback_server_config_on_leto_error, false)
 QUIC_FLAG(FLAGS_quic_restart_flag_dont_fetch_quic_private_keys_from_leto, false)
 QUIC_FLAG(FLAGS_quic_restart_flag_quic_dispatcher_support_multiple_cid_per_connection_v2, true)
-QUIC_FLAG(FLAGS_quic_restart_flag_quic_enable_zero_rtt_for_tls_v2, true)
 QUIC_FLAG(FLAGS_quic_restart_flag_quic_offload_pacing_to_usps2, false)
 QUIC_FLAG(FLAGS_quic_restart_flag_quic_session_tickets_always_enabled, true)
 QUIC_FLAG(FLAGS_quic_restart_flag_quic_support_release_time_for_gso, false)
diff --git a/quic/core/quic_session.cc b/quic/core/quic_session.cc
index bdc9ef5..fd41059 100644
--- a/quic/core/quic_session.cc
+++ b/quic/core/quic_session.cc
@@ -1096,8 +1096,7 @@
 void QuicSession::OnConfigNegotiated() {
   // In versions with TLS, the configs will be set twice if 0-RTT is available.
   // In the second config setting, 1-RTT keys are guaranteed to be available.
-  if (GetQuicRestartFlag(quic_enable_zero_rtt_for_tls_v2) &&
-      version().UsesTls() && is_configured_ &&
+  if (version().UsesTls() && is_configured_ &&
       connection_->encryption_level() != ENCRYPTION_FORWARD_SECURE) {
     QUIC_BUG
         << ENDPOINT
@@ -1296,8 +1295,7 @@
   // Or if this session is configured on TLS enabled QUIC versions,
   // attempt to retransmit 0-RTT data if there's any.
   if (connection_->version().AllowsLowFlowControlLimits() ||
-      (GetQuicRestartFlag(quic_enable_zero_rtt_for_tls_v2) &&
-       version().UsesTls())) {
+      version().UsesTls()) {
     OnCanWrite();
   }
 }
diff --git a/quic/core/quic_versions.cc b/quic/core/quic_versions.cc
index a189e26..97e2194 100644
--- a/quic/core/quic_versions.cc
+++ b/quic/core/quic_versions.cc
@@ -593,7 +593,6 @@
 
 void QuicVersionInitializeSupportForIetfDraft() {
   // Enable necessary flags.
-  SetQuicRestartFlag(quic_enable_zero_rtt_for_tls_v2, true);
 }
 
 void QuicEnableVersion(const ParsedQuicVersion& version) {
diff --git a/quic/core/tls_client_handshaker_test.cc b/quic/core/tls_client_handshaker_test.cc
index 19fdab5..807f49e 100644
--- a/quic/core/tls_client_handshaker_test.cc
+++ b/quic/core/tls_client_handshaker_test.cc
@@ -178,7 +178,6 @@
         server_id_(kServerHostname, kServerPort, false),
         server_compressed_certs_cache_(
             QuicCompressedCertsCache::kQuicCompressedCertsCacheSize) {
-    SetQuicRestartFlag(quic_enable_zero_rtt_for_tls_v2, true);
     crypto_config_ = std::make_unique<QuicCryptoClientConfig>(
         std::make_unique<TestProofVerifier>(),
         std::make_unique<test::SimpleSessionCache>());
diff --git a/quic/core/tls_server_handshaker.cc b/quic/core/tls_server_handshaker.cc
index 39da4a7..c12caa5 100644
--- a/quic/core/tls_server_handshaker.cc
+++ b/quic/core/tls_server_handshaker.cc
@@ -536,7 +536,6 @@
     // FinishHandshake, we don't have any confirmation that the client is live,
     // so all end of handshake processing is deferred until the handshake is
     // actually complete.
-    QUIC_RESTART_FLAG_COUNT(quic_enable_zero_rtt_for_tls_v2);
     return;
   }
   if (!valid_alpn_received_) {
diff --git a/quic/core/tls_server_handshaker_test.cc b/quic/core/tls_server_handshaker_test.cc
index 66cdd79..fbec255 100644
--- a/quic/core/tls_server_handshaker_test.cc
+++ b/quic/core/tls_server_handshaker_test.cc
@@ -138,7 +138,6 @@
             QuicCompressedCertsCache::kQuicCompressedCertsCacheSize),
         server_id_(kServerHostname, kServerPort, false),
         supported_versions_({GetParam().version}) {
-    SetQuicRestartFlag(quic_enable_zero_rtt_for_tls_v2, true);
     SetQuicFlag(FLAGS_quic_disable_server_tls_resumption,
                 GetParam().disable_resumption);
     client_crypto_config_ = std::make_unique<QuicCryptoClientConfig>(