<?xml version="1.0" encoding="UTF-8" standalone="no"?><urn:ContractNotice xmlns:urn="urn:oasis:names:specification:ubl:schema:xsd:ContractNotice-2" xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2" xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" xmlns:efac="http://data.europa.eu/p27/eforms-ubl-extension-aggregate-components/1" xmlns:efbc="http://data.europa.eu/p27/eforms-ubl-extension-basic-components/1" xmlns:efext="http://data.europa.eu/p27/eforms-ubl-extensions/1" xmlns:ext="urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2"><ext:UBLExtensions><ext:UBLExtension><ext:ExtensionContent><efext:EformsExtension><efac:Changes><efbc:ChangedNoticeIdentifier>14a15d4b-81c6-40a8-b223-8792e0ad247d-01</efbc:ChangedNoticeIdentifier><efac:ChangeReason><cbc:ReasonCode listName="change-corrig-justification">update-add</cbc:ReasonCode><efbc:ReasonDescription languageID="DEU">Aufgrund mehrerer Anfragen sowie der letzten Berichtigung wird die Angebotsfrist zur Abgabe der Angebote bis 24.8.2026 23:59 (Einlangen) verlängert.</efbc:ReasonDescription></efac:ChangeReason></efac:Changes><efac:NoticeSubType><cbc:SubTypeCode listName="notice-subtype">16</cbc:SubTypeCode></efac:NoticeSubType><efac:Organizations><efac:Organization><efac:Company><cbc:WebsiteURI>https://www.donauauen.at</cbc:WebsiteURI><cac:PartyIdentification><cbc:ID>ORG-1283</cbc:ID></cac:PartyIdentification><cac:PartyName><cbc:Name languageID="DEU">Nationalpark Donau-Auen GmbH</cbc:Name></cac:PartyName><cac:PostalAddress><cbc:StreetName>Schloss Orth</cbc:StreetName><cbc:CityName>Orth an der Donau</cbc:CityName><cbc:PostalZone>2304</cbc:PostalZone><cbc:CountrySubentityCode listName="nuts">AT126</cbc:CountrySubentityCode><cac:Country><cbc:IdentificationCode listName="country">AUT</cbc:IdentificationCode></cac:Country></cac:PostalAddress><cac:PartyLegalEntity><cbc:CompanyID>9110036969491</cbc:CompanyID></cac:PartyLegalEntity><cac:Contact><cbc:Telephone>+43 22123450</cbc:Telephone><cbc:ElectronicMail>nationalpark@donauauen.at</cbc:ElectronicMail></cac:Contact></efac:Company></efac:Organization><efac:Organization><efac:Company><cbc:WebsiteURI>https://www.bvwg.gv.at/</cbc:WebsiteURI><cac:PartyIdentification><cbc:ID>ORG-1133</cbc:ID></cac:PartyIdentification><cac:PartyName><cbc:Name languageID="DEU">Bundesverwaltungsgericht</cbc:Name></cac:PartyName><cac:PostalAddress><cbc:StreetName>Erdbergstraße 192-196</cbc:StreetName><cbc:CityName>Wien</cbc:CityName><cbc:PostalZone>1030</cbc:PostalZone><cbc:CountrySubentityCode listName="nuts">AT130</cbc:CountrySubentityCode><cac:Country><cbc:IdentificationCode listName="country">AUT</cbc:IdentificationCode></cac:Country></cac:PostalAddress><cac:PartyLegalEntity><cbc:CompanyID>9110008059823</cbc:CompanyID></cac:PartyLegalEntity><cac:Contact><cbc:Telephone>+43 160149</cbc:Telephone><cbc:ElectronicMail>einlaufstelle@bvwg.gv.at</cbc:ElectronicMail></cac:Contact></efac:Company></efac:Organization></efac:Organizations><efac:Publication><efbc:NoticePublicationID schemeName="ojs-notice-id">00565358-2026</efbc:NoticePublicationID><efbc:GazetteID schemeName="ojs-id">156/2026</efbc:GazetteID><efbc:PublicationDate>2026-08-14+02:00</efbc:PublicationDate></efac:Publication></efext:EformsExtension></ext:ExtensionContent></ext:UBLExtension></ext:UBLExtensions><cbc:UBLVersionID>2.3</cbc:UBLVersionID><cbc:CustomizationID>eforms-sdk-1.12</cbc:CustomizationID><cbc:ID schemeName="notice-id">9039e189-5845-49c8-9416-b870909447af</cbc:ID><cbc:ContractFolderID>5fd80b01-2e47-4894-905d-880004d5babf</cbc:ContractFolderID><cbc:IssueDate>2026-08-12+02:00</cbc:IssueDate><cbc:IssueTime>15:41:00+02:00</cbc:IssueTime><cbc:VersionID>01</cbc:VersionID><cbc:RegulatoryDomain>32014L0024</cbc:RegulatoryDomain><cbc:NoticeTypeCode listName="competition">cn-standard</cbc:NoticeTypeCode><cbc:NoticeLanguageCode listName="language">DEU</cbc:NoticeLanguageCode><cac:ContractingParty><cac:ContractingPartyType><cbc:PartyTypeCode listName="buyer-legal-type">body-pl</cbc:PartyTypeCode></cac:ContractingPartyType><cac:ContractingActivity><cbc:ActivityTypeCode listName="authority-activity">env-pro</cbc:ActivityTypeCode></cac:ContractingActivity><cac:Party><cac:PartyIdentification><cbc:ID>ORG-1283</cbc:ID></cac:PartyIdentification></cac:Party></cac:ContractingParty><cac:TenderingTerms><cac:TendererQualificationRequest><cac:SpecificTendererRequirement><cbc:TendererRequirementTypeCode listName="exclusion-grounds-source">epo-procurement-document</cbc:TendererRequirementTypeCode></cac:SpecificTendererRequirement></cac:TendererQualificationRequest></cac:TenderingTerms><cac:TenderingProcess><cbc:ProcedureCode listName="procurement-procedure-type">oth-single</cbc:ProcedureCode></cac:TenderingProcess><cac:ProcurementProject><cbc:ID>DanubeRest 400308 WP2</cbc:ID><cbc:Name languageID="DEU">Machbarkeitsstudie „Renaturierung Untere Schwechat“</cbc:Name><cbc:Description languageID="DEU">Erstellung einer Machbarkeitsstudie für die Renaturierung der Unteren Schwechat im Rahmen von einem geförderten EU Projekt Interreg SK-AT "DanubeRest". Inhalt dieser Studie ist  die Darstellung des Istbestandes und darauf aufbauend die Entwicklung von Varianten für die Renaturierung verschiedener Abschnitte der Unteren Schwechat, der Strecke von der Querung der A4 Ostautobahn bis zur Mündung in die Donau.</cbc:Description><cbc:ProcurementTypeCode listName="contract-nature">services</cbc:ProcurementTypeCode><cbc:Note languageID="DEU">Das Vergabeverfahren liegt im Unterschwellenbereich. Die EU-weite Veröffentlichung erfolgt aufgrund eines nicht auszuschließenden grenzüberschreitenden Interesses.</cbc:Note><cac:MainCommodityClassification><cbc:ItemClassificationCode listName="cpv">71241000</cbc:ItemClassificationCode></cac:MainCommodityClassification><cac:AdditionalCommodityClassification><cbc:ItemClassificationCode listName="cpv">71300000</cbc:ItemClassificationCode></cac:AdditionalCommodityClassification><cac:AdditionalCommodityClassification><cbc:ItemClassificationCode listName="cpv">71351220</cbc:ItemClassificationCode></cac:AdditionalCommodityClassification><cac:AdditionalCommodityClassification><cbc:ItemClassificationCode listName="cpv">71351900</cbc:ItemClassificationCode></cac:AdditionalCommodityClassification><cac:AdditionalCommodityClassification><cbc:ItemClassificationCode listName="cpv">71354000</cbc:ItemClassificationCode></cac:AdditionalCommodityClassification><cac:AdditionalCommodityClassification><cbc:ItemClassificationCode listName="cpv">71313000</cbc:ItemClassificationCode></cac:AdditionalCommodityClassification></cac:ProcurementProject><cac:ProcurementProjectLot><cbc:ID schemeName="Lot">LOT-2834</cbc:ID><cac:TenderingTerms><cbc:FundingProgramCode listName="eu-funded">eu-funds</cbc:FundingProgramCode><cbc:RecurringProcurementIndicator>false</cbc:RecurringProcurementIndicator><cbc:MultipleTendersCode listName="permission">not-allowed</cbc:MultipleTendersCode><cac:CallForTendersDocumentReference><cbc:ID>175002/250572/126</cbc:ID><cbc:DocumentType>non-restricted-document</cbc:DocumentType><cac:Attachment><cac:ExternalReference><cbc:URI>https://gv.vergabeportal.at/Detail/250572</cbc:URI></cac:ExternalReference></cac:Attachment></cac:CallForTendersDocumentReference><cac:PaymentTerms><cbc:Note languageID="DEU">Zahlungsplan siehe Vertragsunterlage</cbc:Note></cac:PaymentTerms><cac:TendererQualificationRequest><cbc:CompanyLegalFormCode listName="required">false</cbc:CompanyLegalFormCode></cac:TendererQualificationRequest><cac:TendererQualificationRequest><cac:SpecificTendererRequirement><cbc:TendererRequirementTypeCode listName="selection-criteria-source">epo-procurement-document</cbc:TendererRequirementTypeCode></cac:SpecificTendererRequirement></cac:TendererQualificationRequest><cac:ContractExecutionRequirement><cbc:ExecutionRequirementCode listName="reserved-execution">no</cbc:ExecutionRequirementCode></cac:ContractExecutionRequirement><cac:ContractExecutionRequirement><cbc:ExecutionRequirementCode listName="einvoicing">required</cbc:ExecutionRequirementCode></cac:ContractExecutionRequirement><cac:ContractExecutionRequirement><cbc:ExecutionRequirementCode listName="ecatalog-submission">not-allowed</cbc:ExecutionRequirementCode></cac:ContractExecutionRequirement><cac:TenderRecipientParty><cbc:EndpointID>https://gv.vergabeportal.at/Detail/250572</cbc:EndpointID></cac:TenderRecipientParty><cac:AppealTerms><cac:PresentationPeriod><cbc:Description languageID="DEU">Gemäß den entsprechenden gesetzlichen Vorgaben</cbc:Description></cac:PresentationPeriod><cac:AppealReceiverParty><cac:PartyIdentification><cbc:ID>ORG-1133</cbc:ID></cac:PartyIdentification></cac:AppealReceiverParty></cac:AppealTerms><cac:Language><cbc:ID>DEU</cbc:ID></cac:Language><cac:PostAwardProcess><cbc:ElectronicOrderUsageIndicator>true</cbc:ElectronicOrderUsageIndicator><cbc:ElectronicPaymentUsageIndicator>true</cbc:ElectronicPaymentUsageIndicator></cac:PostAwardProcess></cac:TenderingTerms><cac:TenderingProcess><cbc:SubmissionMethodCode listName="esubmission">required</cbc:SubmissionMethodCode><cbc:GovernmentAgreementConstraintIndicator>true</cbc:GovernmentAgreementConstraintIndicator><cac:TenderSubmissionDeadlinePeriod><cbc:EndDate>2026-08-24+02:00</cbc:EndDate><cbc:EndTime>23:59:00+02:00</cbc:EndTime></cac:TenderSubmissionDeadlinePeriod><cac:AdditionalInformationRequestPeriod><cbc:EndDate>2026-08-17+02:00</cbc:EndDate><cbc:EndTime>23:59:00+02:00</cbc:EndTime></cac:AdditionalInformationRequestPeriod><cac:AuctionTerms><cbc:AuctionConstraintIndicator>false</cbc:AuctionConstraintIndicator></cac:AuctionTerms><cac:ContractingSystem><cbc:ContractingSystemTypeCode listName="framework-agreement">none</cbc:ContractingSystemTypeCode></cac:ContractingSystem><cac:ContractingSystem><cbc:ContractingSystemTypeCode listName="dps-usage">none</cbc:ContractingSystemTypeCode></cac:ContractingSystem></cac:TenderingProcess><cac:ProcurementProject><cbc:ID>1</cbc:ID><cbc:Name languageID="DEU">Machbarkeitsstudie „Renaturierung Untere Schwechat“</cbc:Name><cbc:Description languageID="DEU">Inhalt dieser Studie ist zum einen die Darstellung des Istbestandes und darauf aufbauend die Entwicklung von Varianten für die Renaturierung verschiedener Abschnitte der Unteren Schwechat, der Strecke von der Querung der A4 Ostautobahn bis zur Mündung in die Donau.
Dabei wird, in Anlehnung an die Struktur von Gewässerentwicklungskonzepten, ein gewässertypisches ökologisches Leitbild erstellt. Dieses umfasst die Darstellung des Ideal- bzw. Referenzzustandes sowie der Defizite. Fachübergreifende formulierte Ziele dienen als Grundlage zur Erarbeitung von Renaturierungsvarianten für einzelne Gewässerabschnitte.</cbc:Description><cbc:ProcurementTypeCode listName="contract-nature">services</cbc:ProcurementTypeCode><cbc:Note languageID="DEU">Die Vergabe erfolgt nach dem Billigstbieterprinzip.</cbc:Note><cbc:SMESuitableIndicator>true</cbc:SMESuitableIndicator><cac:ProcurementAdditionalType><cbc:ProcurementTypeCode listName="environmental-impact">biodiv-eco</cbc:ProcurementTypeCode></cac:ProcurementAdditionalType><cac:ProcurementAdditionalType><cbc:ProcurementTypeCode listName="environmental-impact">pollu-prev</cbc:ProcurementTypeCode></cac:ProcurementAdditionalType><cac:MainCommodityClassification><cbc:ItemClassificationCode listName="cpv">71241000</cbc:ItemClassificationCode></cac:MainCommodityClassification><cac:AdditionalCommodityClassification><cbc:ItemClassificationCode listName="cpv">71300000</cbc:ItemClassificationCode></cac:AdditionalCommodityClassification><cac:AdditionalCommodityClassification><cbc:ItemClassificationCode listName="cpv">71351220</cbc:ItemClassificationCode></cac:AdditionalCommodityClassification><cac:AdditionalCommodityClassification><cbc:ItemClassificationCode listName="cpv">71351900</cbc:ItemClassificationCode></cac:AdditionalCommodityClassification><cac:AdditionalCommodityClassification><cbc:ItemClassificationCode listName="cpv">71354000</cbc:ItemClassificationCode></cac:AdditionalCommodityClassification><cac:AdditionalCommodityClassification><cbc:ItemClassificationCode listName="cpv">71313000</cbc:ItemClassificationCode></cac:AdditionalCommodityClassification><cac:RealizedLocation><cbc:Description languageID="DEU">AT127 (Ort des zu begutachtenden Projektgebietes)</cbc:Description><cac:Address><cbc:CountrySubentityCode listName="nuts">AT126</cbc:CountrySubentityCode><cac:Country><cbc:IdentificationCode listName="country">AUT</cbc:IdentificationCode></cac:Country></cac:Address></cac:RealizedLocation><cac:PlannedPeriod><cbc:StartDate>2026-08-25+02:00</cbc:StartDate><cbc:EndDate>2027-09-30+02:00</cbc:EndDate></cac:PlannedPeriod><cac:ContractExtension><cbc:OptionsDescription languageID="DEU">siehe Ausschreibungsunterlagen (Präsentation der Machbarkeitsstudie)</cbc:OptionsDescription></cac:ContractExtension></cac:ProcurementProject></cac:ProcurementProjectLot></urn:ContractNotice>