diff --git a/src/Neo/Network/P2P/Payloads/Transaction.cs b/src/Neo/Network/P2P/Payloads/Transaction.cs
index b922674d91..8fc771ce7c 100644
--- a/src/Neo/Network/P2P/Payloads/Transaction.cs
+++ b/src/Neo/Network/P2P/Payloads/Transaction.cs
@@ -370,10 +370,13 @@ public virtual VerifyResult VerifyStateDependent(ProtocolSettings settings, Data
             if (!(context?.CheckTransaction(this, conflictsList, snapshot) ?? true)) return VerifyResult.InsufficientFunds;
             long attributesFee = 0;
             foreach (TransactionAttribute attribute in Attributes)
+            {
                 if (!attribute.Verify(snapshot, this))
                     return VerifyResult.InvalidAttribute;
-                else
-                    attributesFee += attribute.CalculateNetworkFee(snapshot, this);
+                if (attribute.Type == TransactionAttributeType.NotaryAssisted && !settings.IsHardforkEnabled(Hardfork.HF_Domovoi, height))
+                    return VerifyResult.InvalidAttribute;
+                attributesFee += attribute.CalculateNetworkFee(snapshot, this);
+            }
             long netFeeDatoshi = NetworkFee - (Size * NativeContract.Policy.GetFeePerByte(snapshot)) - attributesFee;
             if (netFeeDatoshi < 0) return VerifyResult.InsufficientFunds;
 
diff --git a/src/Neo/SmartContract/Native/PolicyContract.cs b/src/Neo/SmartContract/Native/PolicyContract.cs
index adeb2f1c19..7dcabe2771 100644
--- a/src/Neo/SmartContract/Native/PolicyContract.cs
+++ b/src/Neo/SmartContract/Native/PolicyContract.cs
@@ -79,6 +79,9 @@ internal override ContractTask InitializeAsync(ApplicationEngine engine, Hardfor
                 engine.Snapshot.Add(CreateStorageKey(Prefix_FeePerByte), new StorageItem(DefaultFeePerByte));
                 engine.Snapshot.Add(CreateStorageKey(Prefix_ExecFeeFactor), new StorageItem(DefaultExecFeeFactor));
                 engine.Snapshot.Add(CreateStorageKey(Prefix_StoragePrice), new StorageItem(DefaultStoragePrice));
+            }
+            if (hardfork == Hardfork.HF_Domovoi)
+            {
                 engine.Snapshot.Add(CreateStorageKey(Prefix_AttributeFee).Add((byte)TransactionAttributeType.NotaryAssisted), new StorageItem(DefaultNotaryAssistedAttributeFee));
             }
             return ContractTask.CompletedTask;
@@ -118,15 +121,41 @@ public uint GetStoragePrice(DataCache snapshot)
         }
 
         /// <summary>
-        /// Gets the fee for attribute.
+        /// Gets the fee for attribute before Domovoi hardfork.
+        /// </summary>
+        /// <param name="snapshot">The snapshot used to read data.</param>
+        /// <param name="attributeType">Attribute type excluding <see cref="TransactionAttributeType.NotaryAssisted"/></param>
+        /// <returns>The fee for attribute.</returns>
+        [ContractMethod(Hardfork.HF_Domovoi, CpuFee = 1 << 15, RequiredCallFlags = CallFlags.ReadStates, Name = "getAttributeFee")]
+        public uint GetAttributeFeeV0(DataCache snapshot, byte attributeType)
+        {
+            return GetAttributeFee(snapshot, attributeType, false);
+        }
+
+        /// <summary>
+        /// Gets the fee for attribute after Domovoi hardfork.
         /// </summary>
         /// <param name="snapshot">The snapshot used to read data.</param>
         /// <param name="attributeType">Attribute type</param>
         /// <returns>The fee for attribute.</returns>
-        [ContractMethod(CpuFee = 1 << 15, RequiredCallFlags = CallFlags.ReadStates)]
+        [ContractMethod(true, Hardfork.HF_Domovoi, CpuFee = 1 << 15, RequiredCallFlags = CallFlags.ReadStates)]
         public uint GetAttributeFee(DataCache snapshot, byte attributeType)
         {
-            if (!Enum.IsDefined(typeof(TransactionAttributeType), attributeType)) throw new InvalidOperationException();
+            return GetAttributeFee(snapshot, attributeType, true);
+        }
+
+        /// <summary>
+        /// Generic handler for GetAttributeFeeV0 and GetAttributeFeeV1 that
+        /// gets the fee for attribute.
+        /// </summary>
+        /// <param name="snapshot">The snapshot used to read data.</param>
+        /// <param name="attributeType">Attribute type</param>
+        /// <param name="allowNotaryAssisted">Whether to support <see cref="TransactionAttributeType.NotaryAssisted"/> attribute type.</param>
+        /// <returns>The fee for attribute.</returns>
+        private uint GetAttributeFee(DataCache snapshot, byte attributeType, bool allowNotaryAssisted)
+        {
+            if (!Enum.IsDefined(typeof(TransactionAttributeType), attributeType) || (!allowNotaryAssisted && attributeType == (byte)(TransactionAttributeType.NotaryAssisted)))
+                throw new InvalidOperationException();
             StorageItem entry = snapshot.TryGet(CreateStorageKey(Prefix_AttributeFee).Add(attributeType));
             if (entry == null) return DefaultAttributeFee;
 
@@ -145,10 +174,45 @@ public bool IsBlocked(DataCache snapshot, UInt160 account)
             return snapshot.Contains(CreateStorageKey(Prefix_BlockedAccount).Add(account));
         }
 
-        [ContractMethod(CpuFee = 1 << 15, RequiredCallFlags = CallFlags.States)]
-        private void SetAttributeFee(ApplicationEngine engine, byte attributeType, uint value)
+        /// <summary>
+        /// Sets the fee for attribute before Domovoi hardfork.
+        /// </summary>
+        /// <param name="engine">The engine used to check committee witness and read data.</param>
+        /// <param name="attributeType">Attribute type excluding <see cref="TransactionAttributeType.NotaryAssisted"/></param>
+        /// <param name="value">Attribute fee value</param>
+        /// <returns>The fee for attribute.</returns>
+        [ContractMethod(Hardfork.HF_Domovoi, CpuFee = 1 << 15, RequiredCallFlags = CallFlags.States, Name = "setAttributeFee")]
+        private void SetAttributeFeeV0(ApplicationEngine engine, byte attributeType, uint value)
+        {
+            SetAttributeFee(engine, attributeType, value, false);
+        }
+
+        /// <summary>
+        /// Sets the fee for attribute after Domovoi hardfork.
+        /// </summary>
+        /// <param name="engine">The engine used to check committee witness and read data.</param>
+        /// <param name="attributeType">Attribute type excluding <see cref="TransactionAttributeType.NotaryAssisted"/></param>
+        /// <param name="value">Attribute fee value</param>
+        /// <returns>The fee for attribute.</returns>
+        [ContractMethod(true, Hardfork.HF_Domovoi, CpuFee = 1 << 15, RequiredCallFlags = CallFlags.States, Name = "setAttributeFee")]
+        private void SetAttributeFeeV1(ApplicationEngine engine, byte attributeType, uint value)
+        {
+            SetAttributeFee(engine, attributeType, value, true);
+        }
+
+        /// <summary>
+        /// Generic handler for SetAttributeFeeV0 and SetAttributeFeeV1 that
+        /// gets the fee for attribute.
+        /// </summary>
+        /// <param name="engine">The engine used to check committee witness and read data.</param>
+        /// <param name="attributeType">Attribute type</param>
+        /// <param name="value">Attribute fee value</param>
+        /// <param name="allowNotaryAssisted">Whether to support <see cref="TransactionAttributeType.NotaryAssisted"/> attribute type.</param>
+        /// <returns>The fee for attribute.</returns>
+        private void SetAttributeFee(ApplicationEngine engine, byte attributeType, uint value, bool allowNotaryAssisted)
         {
-            if (!Enum.IsDefined(typeof(TransactionAttributeType), attributeType)) throw new InvalidOperationException();
+            if (!Enum.IsDefined(typeof(TransactionAttributeType), attributeType) || (!allowNotaryAssisted && attributeType == (byte)(TransactionAttributeType.NotaryAssisted)))
+                throw new InvalidOperationException();
             if (value > MaxAttributeFee) throw new ArgumentOutOfRangeException(nameof(value));
             if (!CheckCommittee(engine)) throw new InvalidOperationException();