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          <filerCredentials>
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            <ccc>XXXXXXXX</ccc>
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        <liveTestFlag>LIVE</liveTestFlag>
  
  
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        <issuerCik>0001819994</issuerCik>
        <issuerName>Rocket Lab USA, Inc.</issuerName>
        <secFileNumber>001-39560</secFileNumber>
        <issuerAddress>
          <com:street1>3881 MCGOWEN STREET</com:street1>
          <com:city>LONG BEACH</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90808</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>714-465-5737</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Olson Jon A</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
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      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>FIDELITY BROKERAGE SERVICES LLC</name>
          <address>
            <com:street1>245 SUMMER STREET</com:street1>
            <com:city>BOSTON</com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>02110</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>50000</noOfUnitsSold>
        <aggregateMarketValue>932000.00</aggregateMarketValue>
        <noOfUnitsOutstanding>499911078</noOfUnitsOutstanding>
        <approxSaleDate>11/19/2024</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>09/06/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>120792</amountOfSecuritiesAcquired>
        <paymentDate>09/06/2022</paymentDate>
        <natureOfPayment>Compensation </natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>11/19/2024</noticeDate>
        <signature>/s/ Daniel Gardea as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Olson Jon A.</signature>
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text: 144
  0001331263
  XXXXXXXX
  LIVE
  0001819994
  Rocket Lab USA, Inc.
  001-39560
  3881 MCGOWEN STREET
  LONG BEACH
  CA
  90808
  714-465-5737
  Olson Jon A
  Director
  Common
  FIDELITY BROKERAGE SERVICES LLC
  245 SUMMER STREET
  BOSTON
  MA
  02110
  50000
  932000.00
  499911078
  11/19/2024
  NASDAQ
  Common
  09/06/2022
  Stock Award
  Issuer
  N
  120792
  09/06/2022
  Compensation
  Y
  11/19/2024
  /s/ Daniel Gardea as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Olson Jon A.