diff --git a/VectoCore/VectoCore/Resources/XSD/VectoDeclarationDefinitions.2.8_Stage.xsd b/VectoCore/VectoCore/Resources/XSD/VectoDeclarationDefinitions.2.8_Stage.xsd
index 81d1c2a19408709c721609f86f782363ec667fe0..c389140af2a56b483915fd84203301ec13f02456 100644
--- a/VectoCore/VectoCore/Resources/XSD/VectoDeclarationDefinitions.2.8_Stage.xsd
+++ b/VectoCore/VectoCore/Resources/XSD/VectoDeclarationDefinitions.2.8_Stage.xsd
@@ -14,7 +14,7 @@
 			<xs:extension base="v2.8:AbstractCompletedVehicleComponentsDeclarationType">
 				<xs:sequence>
 					<xs:element name="AirDrag" type="v2.0:AirDragComponentDeclarationType" minOccurs="0"/>
-					<xs:element name="Auxiliaries" type="v2.8:CompletedVehicleAuxiliariesComponentDeclarationType"/>
+					<xs:element name="Auxiliaries" type="v2.8:CompletedVehicleAuxiliariesComponentDeclarationType" minOccurs="0"/>
 				</xs:sequence>
 			</xs:extension>
 		</xs:complexContent>
diff --git a/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_consolidated_multiple_stages_airdrag.xml b/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_consolidated_multiple_stages_airdrag.xml
index 38cbc0a0971ce33f19bd1592f1065d6faf542ce2..58cc1205ef4d134b1a3ba7fe5ddeb8debfaab0d2 100644
--- a/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_consolidated_multiple_stages_airdrag.xml
+++ b/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_consolidated_multiple_stages_airdrag.xml
@@ -671,29 +671,26 @@ xsi:schemaLocation="urn:tugraz:ivt:VectoAPI:DeclarationOutput:VehicleInterimFile
 				<v2.8:Components xmlns:v2.8="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:DEV:v2.8" xsi:type="v2.8:CompletedVehicleComponentsDeclarationType">
 					<v2.8:AirDrag>
 						<v2.0:Data xsi:type="v2.0:AirDragDataDeclarationType" id="CabinX24h">
-						<v2.0:Manufacturer>Generic Manufacturer</v2.0:Manufacturer>
-						<v2.0:Model>Generic Model</v2.0:Model>
-						<v2.0:CertificationNumber>e12*0815/8051*2017/05E1000*00</v2.0:CertificationNumber>
-						<v2.0:Date>2018-03-24T15:00:00Z</v2.0:Date>
-						<v2.0:AppVersion>Vecto AirDrag x.y.z</v2.0:AppVersion>
-						<v2.0:CdxA_0>6.31</v2.0:CdxA_0>
-						<v2.0:TransferredCdxA>6.32</v2.0:TransferredCdxA>
-						<v2.0:DeclaredCdxA>6.36</v2.0:DeclaredCdxA>					
-					</v2.0:Data>
-					<v2.0:Signature>
-						<di:Reference URI="#CabinX24h">
-							<di:Transforms>
-								<di:Transform Algorithm="urn:vecto:xml:2017:canonicalization"/>
-								<di:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
-							</di:Transforms>
-							<di:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
-							<di:DigestValue>b9SHCfOoVrBxFQ8wwDK32OO+9bd85DuaUdgs6j/28N8=</di:DigestValue>
-						</di:Reference>
-					</v2.0:Signature>
+							<v2.0:Manufacturer>Generic Manufacturer</v2.0:Manufacturer>
+							<v2.0:Model>Generic Model</v2.0:Model>
+							<v2.0:CertificationNumber>e12*0815/8051*2017/05E1000*00</v2.0:CertificationNumber>
+							<v2.0:Date>2018-03-24T15:00:00Z</v2.0:Date>
+							<v2.0:AppVersion>Vecto AirDrag x.y.z</v2.0:AppVersion>
+							<v2.0:CdxA_0>6.31</v2.0:CdxA_0>
+							<v2.0:TransferredCdxA>6.32</v2.0:TransferredCdxA>
+							<v2.0:DeclaredCdxA>6.36</v2.0:DeclaredCdxA>					
+						</v2.0:Data>
+						<v2.0:Signature>
+							<di:Reference URI="#CabinX24h">
+								<di:Transforms>
+									<di:Transform Algorithm="urn:vecto:xml:2017:canonicalization"/>
+									<di:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
+								</di:Transforms>
+								<di:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
+								<di:DigestValue>b9SHCfOoVrBxFQ8wwDK32OO+9bd85DuaUdgs6j/28N8=</di:DigestValue>
+							</di:Reference>
+						</v2.0:Signature>
 					</v2.8:AirDrag>
-					<v2.8:Auxiliaries>
-						<v2.8:Data xsi:type="v2.8:CompletedVehicleAuxiliaryDataDeclarationType"/>
-					</v2.8:Auxiliaries>
 				</v2.8:Components>
 			</Vehicle>
 			<ApplicationInformation>
@@ -740,7 +737,29 @@ xsi:schemaLocation="urn:tugraz:ivt:VectoAPI:DeclarationOutput:VehicleInterimFile
 					<v2.3:EcoRollWithEngineStop>true</v2.3:EcoRollWithEngineStop>
 					<v2.3:PredictiveCruiseControl>1,2</v2.3:PredictiveCruiseControl>
 				</v2.8:ADAS>	
-				<v2.8:Components xmlns:v2.8="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:DEV:v2.8" xsi:type="v2.8:CompletedVehicleComponentsDeclarationType">					
+				<v2.8:Components xmlns:v2.8="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:DEV:v2.8" xsi:type="v2.8:CompletedVehicleComponentsDeclarationType">				
+					<v2.8:AirDrag>
+						<v2.0:Data xsi:type="v2.0:AirDragDataDeclarationType" id="CabinX24h">
+						<v2.0:Manufacturer>Generic Manufacturer</v2.0:Manufacturer>
+						<v2.0:Model>Generic Model</v2.0:Model>
+						<v2.0:CertificationNumber>e12*0815/8051*2017/05E1000*00</v2.0:CertificationNumber>
+						<v2.0:Date>2018-03-24T15:00:00Z</v2.0:Date>
+						<v2.0:AppVersion>Vecto AirDrag x.y.z</v2.0:AppVersion>
+						<v2.0:CdxA_0>6.31</v2.0:CdxA_0>
+						<v2.0:TransferredCdxA>6.32</v2.0:TransferredCdxA>
+						<v2.0:DeclaredCdxA>6.36</v2.0:DeclaredCdxA>					
+					</v2.0:Data>
+					<v2.0:Signature>
+						<di:Reference URI="#CabinX24h">
+							<di:Transforms>
+								<di:Transform Algorithm="urn:vecto:xml:2017:canonicalization"/>
+								<di:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
+							</di:Transforms>
+							<di:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
+							<di:DigestValue>b9SHCfOoVrBxFQ8wwDK32OO+9bd85DuaUdgs6j/28N8=</di:DigestValue>
+						</di:Reference>
+					</v2.0:Signature>
+					</v2.8:AirDrag>		
 					<v2.8:Auxiliaries>
 						<v2.8:Data xsi:type="v2.8:CompletedVehicleAuxiliaryDataDeclarationType">
 							<v2.8:ElectricSystem>
@@ -811,6 +830,28 @@ xsi:schemaLocation="urn:tugraz:ivt:VectoAPI:DeclarationOutput:VehicleInterimFile
 					<v2.3:APTEcoRollReleaseLockupClutch>true</v2.3:APTEcoRollReleaseLockupClutch>
 				</v2.8:ADAS>				
 				<v2.8:Components xmlns:v2.8="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:DEV:v2.8" xsi:type="v2.8:CompletedVehicleComponentsDeclarationType">
+					<v2.8:AirDrag>
+						<v2.0:Data xsi:type="v2.0:AirDragDataDeclarationType" id="CabinX24h">
+						<v2.0:Manufacturer>Generic Manufacturer</v2.0:Manufacturer>
+						<v2.0:Model>Generic Model</v2.0:Model>
+						<v2.0:CertificationNumber>e12*0815/8051*2017/05E1000*00</v2.0:CertificationNumber>
+						<v2.0:Date>2018-03-24T15:00:00Z</v2.0:Date>
+						<v2.0:AppVersion>Vecto AirDrag x.y.z</v2.0:AppVersion>
+						<v2.0:CdxA_0>6.31</v2.0:CdxA_0>
+						<v2.0:TransferredCdxA>6.32</v2.0:TransferredCdxA>
+						<v2.0:DeclaredCdxA>6.36</v2.0:DeclaredCdxA>					
+					</v2.0:Data>
+					<v2.0:Signature>
+						<di:Reference URI="#CabinX24h">
+							<di:Transforms>
+								<di:Transform Algorithm="urn:vecto:xml:2017:canonicalization"/>
+								<di:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
+							</di:Transforms>
+							<di:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
+							<di:DigestValue>b9SHCfOoVrBxFQ8wwDK32OO+9bd85DuaUdgs6j/28N8=</di:DigestValue>
+						</di:Reference>
+					</v2.0:Signature>
+					</v2.8:AirDrag>				
 					<v2.8:Auxiliaries>
 						<v2.8:Data xsi:type="v2.8:CompletedVehicleAuxiliaryDataDeclarationType">
 							<v2.8:ElectricSystem>
diff --git a/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_consolidated_two_stages.xml b/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_consolidated_two_stages.xml
index 3ee70563879a39e3d19c529fcaaa660c9fab5f75..c682749070edbc0a489d1d9e4b934f1add0a6e10 100644
--- a/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_consolidated_two_stages.xml
+++ b/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_consolidated_two_stages.xml
@@ -702,8 +702,7 @@ xsi:schemaLocation="urn:tugraz:ivt:VectoAPI:DeclarationOutput:VehicleInterimFile
 				<v2.8:ManufacturerAddress>Intermediate Manufacturer Address 2</v2.8:ManufacturerAddress>
 				<v2.8:VIN>VEH-2234567890</v2.8:VIN>
 				<v2.8:Date>2021-02-13T07:20:08.0187663Z</v2.8:Date>
-				<v2.8:CorrectedActualMass>15000</v2.8:CorrectedActualMass>	
-				<v2.8:AirdragModifiedMultistage>false</v2.8:AirdragModifiedMultistage>
+				<v2.8:CorrectedActualMass>15000</v2.8:CorrectedActualMass>
 				<v2.8:BodyworkCode>CB</v2.8:BodyworkCode>
 				<v2.8:DoorDriveTechnology>mixed</v2.8:DoorDriveTechnology>				
 				<v2.8:VehicleDeclarationType>interim</v2.8:VehicleDeclarationType>				
diff --git a/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_primary_vehicle_stage_2_3.xml b/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_primary_vehicle_stage_2_3.xml
index 1198a4982abcc4cf089158284457a96ad0aba453..b1a628aa5856e2fb4709b2636dbb161affa74042 100644
--- a/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_primary_vehicle_stage_2_3.xml
+++ b/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_primary_vehicle_stage_2_3.xml
@@ -692,8 +692,7 @@ xsi:schemaLocation="urn:tugraz:ivt:VectoAPI:DeclarationOutput:VehicleInterimFile
 				<v2.8:Manufacturer>Intermediate Manufacturer 2</v2.8:Manufacturer>
 				<v2.8:ManufacturerAddress></v2.8:ManufacturerAddress>
 				<v2.8:VIN>VEH-2234567890</v2.8:VIN>
-				<v2.8:Date>2021-02-13T07:20:08.0187663Z</v2.8:Date>
-				<v2.8:AirdragModifiedMultistage>false</v2.8:AirdragModifiedMultistage>				
+				<v2.8:Date>2021-02-13T07:20:08.0187663Z</v2.8:Date>			
 				<v2.8:VehicleDeclarationType>final</v2.8:VehicleDeclarationType>
 				<v2.8:ADAS>
 					<v2.3:EngineStopStart>true</v2.3:EngineStopStart>
@@ -735,8 +734,7 @@ xsi:schemaLocation="urn:tugraz:ivt:VectoAPI:DeclarationOutput:VehicleInterimFile
 				<SimulationToolVersion>!!NOT FOR CERTIFICATION!!</SimulationToolVersion>
 				<Date>2021-02-13T07:20:08.0187663Z</Date>
 			</ApplicationInformation>
-		</Data>
-		
+		</Data>		
 		<Signature>
 			<di:Reference URI="#RESULT-8f30c7fe665a47938f6b">
 				<di:Transforms>
diff --git a/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_primary_vehicle_stage_2_full.xml b/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_primary_vehicle_stage_2_full.xml
index afa882b6d04922a6e76e18c9e608089cd5a15d77..f0ce6348b1bd2ecd49193c304ad3b3d3662222cd 100644
--- a/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_primary_vehicle_stage_2_full.xml
+++ b/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersionMultistage.0.1/vecto_multistage_primary_vehicle_stage_2_full.xml
@@ -662,7 +662,6 @@ xsi:schemaLocation="urn:tugraz:ivt:VectoAPI:DeclarationOutput:VehicleInterimFile
 				<v2.8:LegislativeCategory>M3</v2.8:LegislativeCategory>
 				<v2.8:CorrectedActualMass>25000</v2.8:CorrectedActualMass>
 				<v2.8:TechnicalPermissibleMaximumLadenMass>30000</v2.8:TechnicalPermissibleMaximumLadenMass>
-				<v2.8:AirdragModifiedMultistage>true</v2.8:AirdragModifiedMultistage>
 				<v2.8:NgTankSystem>Liquefied</v2.8:NgTankSystem>
 				<v2.8:ClassBus>B</v2.8:ClassBus>
 				<v2.8:NumberPassengersLowerDeck>30</v2.8:NumberPassengersLowerDeck>