diff --git a/neuralnetworks/1.3/types.hal b/neuralnetworks/1.3/types.hal
index 530f984..8ee867c 100644
--- a/neuralnetworks/1.3/types.hal
+++ b/neuralnetworks/1.3/types.hal
@@ -5176,8 +5176,10 @@
 /**
  * The capabilities of a driver.
  *
- * Performance of an operation comes from the type of its first operand.
- * This represents performance for non extension operand types.
+ * This represents performance of non-extension operations.
+ *
+ * Performance of an operation other than {@link OperationType::IF} and
+ * {@link OperationType::WHILE} comes from the type of its first operand.
  */
 struct Capabilities {
     /**
@@ -5200,11 +5202,32 @@
 
     /**
      * Performance by operand type. Must be sorted by OperandType.
-     * If a particular OperandType is not present in operandPerformance,
+     *
+     * If a particular {@link OperandType} is not present in operandPerformance,
      * its performance is treated as
      * { .execTime = FLT_MAX, .powerUsage = FLT_MAX }.
+     *
+     * Performance does not apply to {@link OperandType::SUBGRAPH}, and a driver
+     * must not report operand performance for {@link OperandType::SUBGRAPH}.
      */
     vec<OperandPerformance> operandPerformance;
+
+    /**
+     * Performance of an {@link OperationType::IF} operation is the sum of
+     * {@link Capabilities::ifPerformance} and the mean of performance for the
+     * two branch subgraphs, where performance for a subgraph is the sum of the
+     * performance of all operations within the subgraph.
+     */
+    PerformanceInfo ifPerformance;
+
+    /**
+     * Performance of a {@link OperationType::WHILE} operation is the sum of
+     * {@link Capabilities::whilePerformance}, performance for the condition
+     * subgraph and performance for the body subgraph, where performance for a
+     * subgraph is the sum of the performance of all operations within the
+     * subgraph.
+     */
+    PerformanceInfo whilePerformance;
 };
 
 /**
diff --git a/neuralnetworks/1.3/types.t b/neuralnetworks/1.3/types.t
index 3d0d02d..c663a60 100644
--- a/neuralnetworks/1.3/types.t
+++ b/neuralnetworks/1.3/types.t
@@ -103,8 +103,10 @@
 /**
  * The capabilities of a driver.
  *
- * Performance of an operation comes from the type of its first operand.
- * This represents performance for non extension operand types.
+ * This represents performance of non-extension operations.
+ *
+ * Performance of an operation other than {@link OperationType::IF} and
+ * {@link OperationType::WHILE} comes from the type of its first operand.
  */
 struct Capabilities {
     /**
@@ -127,11 +129,32 @@
 
     /**
      * Performance by operand type. Must be sorted by OperandType.
-     * If a particular OperandType is not present in operandPerformance,
+     *
+     * If a particular {@link OperandType} is not present in operandPerformance,
      * its performance is treated as
      * { .execTime = FLT_MAX, .powerUsage = FLT_MAX }.
+     *
+     * Performance does not apply to {@link OperandType::SUBGRAPH}, and a driver
+     * must not report operand performance for {@link OperandType::SUBGRAPH}.
      */
     vec<OperandPerformance> operandPerformance;
+
+    /**
+     * Performance of an {@link OperationType::IF} operation is the sum of
+     * {@link Capabilities::ifPerformance} and the mean of performance for the
+     * two branch subgraphs, where performance for a subgraph is the sum of the
+     * performance of all operations within the subgraph.
+     */
+    PerformanceInfo ifPerformance;
+
+    /**
+     * Performance of a {@link OperationType::WHILE} operation is the sum of
+     * {@link Capabilities::whilePerformance}, performance for the condition
+     * subgraph and performance for the body subgraph, where performance for a
+     * subgraph is the sum of the performance of all operations within the
+     * subgraph.
+     */
+    PerformanceInfo whilePerformance;
 };
 
 /**
diff --git a/neuralnetworks/1.3/vts/functional/BasicTests.cpp b/neuralnetworks/1.3/vts/functional/BasicTests.cpp
index 891850c..1c25369 100644
--- a/neuralnetworks/1.3/vts/functional/BasicTests.cpp
+++ b/neuralnetworks/1.3/vts/functional/BasicTests.cpp
@@ -57,6 +57,11 @@
                                    [](const OperandPerformance& a, const OperandPerformance& b) {
                                        return a.type < b.type;
                                    }));
+        EXPECT_TRUE(std::all_of(opPerf.begin(), opPerf.end(), [](const OperandPerformance& a) {
+            return a.type != OperandType::SUBGRAPH;
+        }));
+        EXPECT_TRUE(isPositive(capabilities.ifPerformance));
+        EXPECT_TRUE(isPositive(capabilities.whilePerformance));
     });
     EXPECT_TRUE(ret.isOk());
 }