diff --git a/tests/horizon/ParameterRegistryUpdate.t.sol b/tests/horizon/ParameterRegistryUpdate.t.sol
new file mode 100644
index 00000000..84e26e6f
--- /dev/null
+++ b/tests/horizon/ParameterRegistryUpdate.t.sol
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: BUSL-1.1
+pragma solidity ^0.8.0;
+
+import 'tests/horizon/ParameterRegistryUpdateBase.t.sol';
+
+contract ParameterRegistryUpdateTest is ParameterRegistryUpdateBaseTest {
+  function setUp() public override {
+    super.setUp();
+    vm.createSelectFork('mainnet', 23990951);
+  }
+
+  function _loadExpectedParams() internal override {
+    expectedParams[AaveV3EthereumHorizonCustom.USYC_UNDERLYING] = ParamRegistryFields({
+      maxExpectedApy: 375,
+      upperBoundTolerance: 10,
+      lowerBoundTolerance: 5,
+      maxDiscount: 10,
+      lookbackWindowSize: 4,
+      isUpperBoundEnabled: true,
+      isLowerBoundEnabled: true,
+      isActionTakingEnabled: false
+    });
+    expectedParams[AaveV3EthereumHorizonCustom.JAAA_UNDERLYING] = ParamRegistryFields({
+      maxExpectedApy: 500,
+      upperBoundTolerance: 25,
+      lowerBoundTolerance: 10,
+      maxDiscount: 75,
+      lookbackWindowSize: 4,
+      isUpperBoundEnabled: true,
+      isLowerBoundEnabled: true,
+      isActionTakingEnabled: false
+    });
+    expectedParams[AaveV3EthereumHorizonCustom.JTRSY_UNDERLYING] = ParamRegistryFields({
+      maxExpectedApy: 375,
+      upperBoundTolerance: 10,
+      lowerBoundTolerance: 5,
+      maxDiscount: 10,
+      lookbackWindowSize: 4,
+      isUpperBoundEnabled: true,
+      isLowerBoundEnabled: true,
+      isActionTakingEnabled: false
+    });
+    expectedParams[AaveV3EthereumHorizonCustom.USTB_UNDERLYING] = ParamRegistryFields({
+      maxExpectedApy: 375,
+      upperBoundTolerance: 10,
+      lowerBoundTolerance: 5,
+      maxDiscount: 10,
+      lookbackWindowSize: 4,
+      isUpperBoundEnabled: true,
+      isLowerBoundEnabled: true,
+      isActionTakingEnabled: false
+    });
+    expectedParams[AaveV3EthereumHorizonCustom.USCC_UNDERLYING] = ParamRegistryFields({
+      maxExpectedApy: 750,
+      upperBoundTolerance: 50,
+      lowerBoundTolerance: 10,
+      maxDiscount: 40,
+      lookbackWindowSize: 4,
+      isUpperBoundEnabled: true,
+      isLowerBoundEnabled: true,
+      isActionTakingEnabled: false
+    });
+    expectedParams[AaveV3EthereumHorizonCustom.VBILL_UNDERLYING] = ParamRegistryFields({
+      maxExpectedApy: 0,
+      upperBoundTolerance: 10,
+      lowerBoundTolerance: 10,
+      maxDiscount: 0,
+      lookbackWindowSize: 4,
+      isUpperBoundEnabled: true,
+      isLowerBoundEnabled: true,
+      isActionTakingEnabled: false
+    });
+  }
+}
diff --git a/tests/horizon/ParameterRegistryUpdateBase.t.sol b/tests/horizon/ParameterRegistryUpdateBase.t.sol
new file mode 100644
index 00000000..9b48949e
--- /dev/null
+++ b/tests/horizon/ParameterRegistryUpdateBase.t.sol
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: BUSL-1.1
+pragma solidity ^0.8.0;
+
+import {console2 as console} from 'forge-std/console2.sol';
+import {Test, Vm} from 'forge-std/Test.sol';
+import {AaveV3EthereumHorizonCustom} from './utils/AaveV3EthereumHorizonCustom.sol';
+import {IRwaOracleParameterRegistry} from './dependencies/IRwaOracleParameterRegistry.sol';
+
+abstract contract ParameterRegistryUpdateBaseTest is Test {
+  struct ParamRegistryFields {
+    uint64 maxExpectedApy;
+    uint32 upperBoundTolerance;
+    uint32 lowerBoundTolerance;
+    uint32 maxDiscount;
+    uint80 lookbackWindowSize;
+    bool isUpperBoundEnabled;
+    bool isLowerBoundEnabled;
+    bool isActionTakingEnabled;
+  }
+  IRwaOracleParameterRegistry public parameterRegistry;
+  mapping(address => ParamRegistryFields) public expectedParams;
+
+  function setUp() public virtual {
+    parameterRegistry = IRwaOracleParameterRegistry(
+      AaveV3EthereumHorizonCustom.RWA_ORACLE_PARAMS_REGISTRY
+    );
+    _loadExpectedParams();
+  }
+
+  function test_parameterRegistryUpdate_USTB() public view {
+    _assertParameters(
+      AaveV3EthereumHorizonCustom.USTB_UNDERLYING,
+      expectedParams[AaveV3EthereumHorizonCustom.USTB_UNDERLYING]
+    );
+  }
+
+  function test_parameterRegistryUpdate_USCC() public view {
+    _assertParameters(
+      AaveV3EthereumHorizonCustom.USCC_UNDERLYING,
+      expectedParams[AaveV3EthereumHorizonCustom.USCC_UNDERLYING]
+    );
+  }
+
+  function test_parameterRegistryUpdate_USYC() public view {
+    _assertParameters(
+      AaveV3EthereumHorizonCustom.USYC_UNDERLYING,
+      expectedParams[AaveV3EthereumHorizonCustom.USYC_UNDERLYING]
+    );
+  }
+
+  function test_parameterRegistryUpdate_JAAA() public view {
+    _assertParameters(
+      AaveV3EthereumHorizonCustom.JAAA_UNDERLYING,
+      expectedParams[AaveV3EthereumHorizonCustom.JAAA_UNDERLYING]
+    );
+  }
+
+  function test_parameterRegistryUpdate_JTRSY() public view {
+    _assertParameters(
+      AaveV3EthereumHorizonCustom.JTRSY_UNDERLYING,
+      expectedParams[AaveV3EthereumHorizonCustom.JTRSY_UNDERLYING]
+    );
+  }
+
+  function test_parameterRegistryUpdate_VBILL() public view {
+    _assertParameters(
+      AaveV3EthereumHorizonCustom.VBILL_UNDERLYING,
+      expectedParams[AaveV3EthereumHorizonCustom.VBILL_UNDERLYING]
+    );
+  }
+
+  function _loadExpectedParams() internal virtual {}
+
+  function _assertParameters(address asset, ParamRegistryFields memory expectedParam) public view {
+    (
+      uint64 maxExpectedApy,
+      uint32 upperBoundTolerance,
+      uint32 lowerBoundTolerance,
+      uint32 maxDiscount,
+      uint80 lookbackWindowSize,
+      bool isUpperBoundEnabled,
+      bool isLowerBoundEnabled,
+      bool isActionTakingEnabled
+    ) = parameterRegistry.getParametersForAsset(asset);
+
+    assertEq(maxExpectedApy, expectedParam.maxExpectedApy, 'maxExpectedApy');
+    assertEq(upperBoundTolerance, expectedParam.upperBoundTolerance, 'upperBoundTolerance');
+    assertEq(lowerBoundTolerance, expectedParam.lowerBoundTolerance, 'lowerBoundTolerance');
+    assertEq(maxDiscount, expectedParam.maxDiscount, 'maxDiscount');
+    assertEq(lookbackWindowSize, expectedParam.lookbackWindowSize, 'lookbackWindowSize');
+    assertEq(isUpperBoundEnabled, expectedParam.isUpperBoundEnabled, 'isUpperBoundEnabled');
+    assertEq(isLowerBoundEnabled, expectedParam.isLowerBoundEnabled, 'isLowerBoundEnabled');
+    assertEq(isActionTakingEnabled, expectedParam.isActionTakingEnabled, 'isActionTakingEnabled');
+  }
+}