diff --git a/packages/cardano-services/src/Utxo/DbSyncUtxoProvider/mappers.ts b/packages/cardano-services/src/Utxo/DbSyncUtxoProvider/mappers.ts
index efb14b8d76e..cc56fa0a567 100644
--- a/packages/cardano-services/src/Utxo/DbSyncUtxoProvider/mappers.ts
+++ b/packages/cardano-services/src/Utxo/DbSyncUtxoProvider/mappers.ts
@@ -53,6 +53,18 @@ const parseReferenceScript = (model: UtxoModel): Cardano.Script => {
         version: Cardano.PlutusLanguageVersion.V2
       };
       break;
+    case ReferenceScriptType.PlutusV3:
+      if (!isNotNil(model.reference_script_bytes))
+        throw new SerializationError(
+          SerializationFailure.InvalidScript,
+          'Unexpected error deserializing PlutusV2 script. Data is null'
+        );
+      script = {
+        __type: Cardano.ScriptType.Plutus,
+        bytes: model.reference_script_bytes as unknown as HexBlob,
+        version: Cardano.PlutusLanguageVersion.V3
+      };
+      break;
     default:
       throw new SerializationError(
         SerializationFailure.InvalidScriptType,
diff --git a/packages/cardano-services/src/Utxo/DbSyncUtxoProvider/types.ts b/packages/cardano-services/src/Utxo/DbSyncUtxoProvider/types.ts
index 99d8f0fe4cd..9476ef34b0e 100644
--- a/packages/cardano-services/src/Utxo/DbSyncUtxoProvider/types.ts
+++ b/packages/cardano-services/src/Utxo/DbSyncUtxoProvider/types.ts
@@ -28,5 +28,6 @@ export enum ReferenceScriptType {
   Multisig = 'multisig',
   Timelock = 'timelock',
   PlutusV1 = 'plutusV1',
-  PlutusV2 = 'plutusV2'
+  PlutusV2 = 'plutusV2',
+  PlutusV3 = 'plutusV3'
 }
diff --git a/packages/core/src/Serialization/Update/Costmdls/CostModel.ts b/packages/core/src/Serialization/Update/Costmdls/CostModel.ts
index 22bda39484f..f4e1324144b 100644
--- a/packages/core/src/Serialization/Update/Costmdls/CostModel.ts
+++ b/packages/core/src/Serialization/Update/Costmdls/CostModel.ts
@@ -1,10 +1,6 @@
-import { InvalidArgumentError, InvalidStateError } from '@cardano-sdk/util';
+import { InvalidArgumentError } from '@cardano-sdk/util';
 import { PlutusLanguageVersion } from '../../../Cardano/types/Script';
 
-const PLUTUS_V1_COST_MODEL_OP_COUNT = 166;
-const PLUTUS_V2_COST_MODEL_OP_COUNT = 175;
-const PLUTUS_V3_COST_MODEL_OP_COUNT = 179;
-
 /**
  * The execution of plutus scripts consumes resources. To make sure that these
  * scripts don't run indefinitely or consume excessive resources (which would be
@@ -28,32 +24,6 @@ export class CostModel {
   constructor(language: PlutusLanguageVersion, costs: Array<number>) {
     this.#language = language;
     this.#costs = costs;
-
-    switch (this.#language) {
-      case PlutusLanguageVersion.V1:
-        if (costs.length !== PLUTUS_V1_COST_MODEL_OP_COUNT)
-          throw new InvalidArgumentError(
-            'costs',
-            `Cost model for PlutusV2 language should have ${PLUTUS_V2_COST_MODEL_OP_COUNT} operations, but got ${costs.length}.`
-          );
-        break;
-      case PlutusLanguageVersion.V2:
-        if (costs.length !== PLUTUS_V2_COST_MODEL_OP_COUNT)
-          throw new InvalidArgumentError(
-            'costs',
-            `Cost model for PlutusV2 language should have ${PLUTUS_V2_COST_MODEL_OP_COUNT} operations, but got ${costs.length}.`
-          );
-        break;
-      case PlutusLanguageVersion.V3:
-        if (costs.length !== PLUTUS_V3_COST_MODEL_OP_COUNT)
-          throw new InvalidArgumentError(
-            'costs',
-            `Cost model for PlutusV3 language should have ${PLUTUS_V3_COST_MODEL_OP_COUNT} operations, but got ${costs.length}.`
-          );
-        break;
-      default:
-        throw new InvalidStateError('Invalid plutus language version.');
-    }
   }
 
   /**
@@ -141,21 +111,6 @@ export class CostModel {
    * @returns true if is a valid operation; otherwise; false.
    */
   #isOperationValid(operation: number): boolean {
-    let isValid = false;
-    switch (this.#language) {
-      case PlutusLanguageVersion.V1:
-        isValid = operation >= 0 && operation < PLUTUS_V1_COST_MODEL_OP_COUNT;
-        break;
-      case PlutusLanguageVersion.V2:
-        isValid = operation >= 0 && operation < PLUTUS_V2_COST_MODEL_OP_COUNT;
-        break;
-      case PlutusLanguageVersion.V3:
-        isValid = operation >= 0 && operation < PLUTUS_V3_COST_MODEL_OP_COUNT;
-        break;
-      default:
-        throw new InvalidStateError('Invalid plutus language version.');
-    }
-
-    return isValid;
+    return operation >= 0;
   }
 }