diff --git a/tensorflow/compiler/tf2tensorrt/segment/segment.cc b/tensorflow/compiler/tf2tensorrt/segment/segment.cc
index 4d9dd42a53a..2237ac20863 100644
--- a/tensorflow/compiler/tf2tensorrt/segment/segment.cc
+++ b/tensorflow/compiler/tf2tensorrt/segment/segment.cc
@@ -27,8 +27,11 @@ limitations under the License.
 #include "tensorflow/core/graph/graph_constructor.h"
 #include "tensorflow/core/lib/core/errors.h"
 #include "tensorflow/core/lib/core/status.h"
+#include "tensorflow/core/lib/gtl/flatset.h"
 #include "tensorflow/core/lib/strings/strcat.h"
+#include "tensorflow/core/lib/strings/str_util.h"
 #include "tensorflow/core/platform/types.h"
+#include "tensorflow/core/util/env_var.h"
 
 #if GOOGLE_CUDA
 #if GOOGLE_TENSORRT
@@ -401,6 +404,13 @@ void ContractEdge(SimpleEdge* edge, SimpleGraph* graph,
   }
 }
 
+namespace {
+static void UpdateList(gtl::FlatSet<string>* list, const string& values_to_add){
+
+}
+
+} // namespace
+
 Status SegmentGraph(const Graph* tf_graph,
                     const std::function<Status(const Node*)>& candidate_fn,
                     const std::function<bool(const Edge*)>& input_candidate_fn,
@@ -422,6 +432,20 @@ Status SegmentGraph(const Graph* tf_graph,
   // for TRT.
   std::unordered_set<string> unsupported_ops;
   int num_unsupported_ops = 0;
+
+  // Getting the nodes blacklisted for conversion
+  string tftrt_node_blacklist_str;
+  TF_CHECK_OK(ReadStringFromEnvVar(
+    "TF_TRT_BLACKLIST_OP", "", &tftrt_node_blacklist_str
+  ));
+
+  auto tftrt_node_blacklist = gtl::FlatSet<string>{};
+
+  for (const auto& x : str_util::Split(tftrt_node_blacklist_str, ",")) {
+    tftrt_node_blacklist.insert(x);
+  }
+
+  // Parsing each node of the graph
   std::vector<UnionFind<SimpleNode*>> node_segments;
   for (int i = 0; i < graph->num_node_ids(); ++i) {
     SimpleNode* node = graph->FindNodeId(i);
@@ -443,6 +467,15 @@ Status SegmentGraph(const Graph* tf_graph,
         unsupported_ops.emplace(node->tf_node()->type_string());
         num_unsupported_ops++;
         node = nullptr;
+      } else if (tftrt_node_blacklist.count(node->tf_node()->type_string())) {
+        // WARNING verbosity since the user explicitly requests this behavior.
+        LOG(WARNING) << "Blacklisted as TF-TRT candidate, "
+                << "(Op type: " << node->tf_node()->type_string() << "), "
+                << "(Op name: " << node->name() << "), "
+                << "(Reason: Blacklisted with the env var TF_TRT_BLACKLIST_OP)";
+        unsupported_ops.emplace(node->tf_node()->type_string());
+        num_unsupported_ops++;
+        node = nullptr;
       } else {
         VLOG(2) << "Accepted as a TF-TRT candidate, "
                 << "(Op type: " << node->tf_node()->type_string() << "), "