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        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
        <DescriptionOfNonCashAsstTxt>13,250</DescriptionOfNonCashAsstTxt>
        <ValuationMethodUsedDesc>FMV</ValuationMethodUsedDesc>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Registration Fees</TypeOfAssistanceTxt>
        <RegionTxt>Middle East&amp;N Africa</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1200</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
        <DescriptionOfNonCashAsstTxt>600</DescriptionOfNonCashAsstTxt>
        <ValuationMethodUsedDesc>FMV</ValuationMethodUsedDesc>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Registration Fees</TypeOfAssistanceTxt>
        <RegionTxt>North America</RegionTxt>
        <RecipientCnt>4</RecipientCnt>
        <CashGrantAmt>3750</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
        <DescriptionOfNonCashAsstTxt>2,400</DescriptionOfNonCashAsstTxt>
        <ValuationMethodUsedDesc>FMV</ValuationMethodUsedDesc>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Registration Fees</TypeOfAssistanceTxt>
        <RegionTxt>Russia&amp;Neighbor Stat</RegionTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>2500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
        <DescriptionOfNonCashAsstTxt>1,200</DescriptionOfNonCashAsstTxt>
        <ValuationMethodUsedDesc>FMV</ValuationMethodUsedDesc>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Registration Fees</TypeOfAssistanceTxt>
        <RegionTxt>South America</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1100</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
        <DescriptionOfNonCashAsstTxt>500</DescriptionOfNonCashAsstTxt>
        <ValuationMethodUsedDesc>FMV</ValuationMethodUsedDesc>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Registration Fees</TypeOfAssistanceTxt>
        <RegionTxt>South Asia</RegionTxt>
        <RecipientCnt>6</RecipientCnt>
        <CashGrantAmt>5775</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
        <DescriptionOfNonCashAsstTxt>4,200</DescriptionOfNonCashAsstTxt>
        <ValuationMethodUsedDesc>FMV</ValuationMethodUsedDesc>
      </ForeignIndividualsGrantsGrp>
      <TransferToForeignCorpInd>false</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>false</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>false</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>false</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>false</ForeignPartnershipInd>
      <BoycottCountriesInd>false</BoycottCountriesInd>
    </IRS990ScheduleF>
    <IRS990ScheduleI documentId="IRS990ScheduleI" softwareId="23017517" softwareVersionNum="2023v5.1">
      <GrantRecordsMaintainedInd>true</GrantRecordsMaintainedInd>
      <Total501c3OrgCnt>0</Total501c3OrgCnt>
      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Diversity Grants Registration Fees</GrantTypeTxt>
        <RecipientCnt>57</RecipientCnt>
        <CashGrantAmt>42977</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Student Grants for Registration Fee</GrantTypeTxt>
        <RecipientCnt>147</RecipientCnt>
        <CashGrantAmt>85775</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Black Student Grants Regist Fees</GrantTypeTxt>
        <RecipientCnt>9</RecipientCnt>
        <CashGrantAmt>5150</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Additional Supplemental Information</FormAndLineReferenceDesc>
        <ExplanationTxt>PART I, LINE 2:GRANTS ARE PROVIDED TO ATTEND USENIX CONFERENCES, AND ATTENDANCE ISVERIFIED PRIOR TO DISBURSEMENT.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="IRS990ScheduleJ" softwareId="23017517" softwareVersionNum="2023v5.1">
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>false</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>false</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>false</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>false</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>false</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>false</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Camille Mulligan</PersonNm>
        <TitleTxt>Development Dir.</TitleTxt>
        <BaseCompensationFilingOrgAmt>168539</BaseCompensationFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>168539</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Casey Henderson</PersonNm>
        <TitleTxt>Executive Dir.</TitleTxt>
        <BaseCompensationFilingOrgAmt>248629</BaseCompensationFilingOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>11761</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>260390</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="IRS990ScheduleO" softwareId="23017517" softwareVersionNum="2023v5.1">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL MEMBERSHIP CLASSES ARE ACCORDED VOTING RIGHTS, INCLUDING STUDENTS, ADVOCATES, SUSTAINERS, CHAMPIONS, EDUCATIONAL, AND CORPORATE MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS OF USENIX ELECT THE BOARD OF DIRECTORS AND OFFICERS IN AN ELECTIONHELD EVERY TWO YEARS. A NOMINATING COMMITTEE SUBMITS CANDIDATES, WHO MUSTBE MEMBERS OF THE ASSOCIATION, AND PUBLISHES THE SLATE IN THE ORGANIZATION'S NEWSLETTER. A MINIMUM OF 2% OF CURRENT ASSOCIATION MEMBERS WITH VOTING RIGHTS, ACTING TOGETHER, MAY ALSO SUBMIT A CANDIDATE. THE OFFICERS AND DIRECTORS GOVERN ACCORDING TO THE BYLAWS OF THE ORGANIZATION. THE BYLAWS ARE POSTED ON THE ASSOCIATION'S WEB SITE AT USENIX.ORG</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS MAY CHANGE OR AMEND THE BYLAWS BY AN AFFIRMATIVE VOTE OF 2/3 OF THEVOTES CAST BY MEMBERS ENTITLED TO VOTE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS EMAILED TO THE BOARD OF DIRECTORS FOR REVIEW AFTER IT ISPREPARED. ANY QUESTIONS ARE DIRECTED TO THE ACCOUNTANT PREPARING THE RETURN FOR INVESTIGATION, EXPLANATION, AND RESOLUTION. FILING OF THE FORM 990 MAY OCCUR PRIOR TO ALL DIRECTORS HAVING AN OPPORTUNITY TO REVIEW IT, BUT ALL QUESTIONS ARE ADDRESSED AND RESOLVED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>AT THE FIRST BOARD OF DIRECTORS MEETING AFTER AN ELECTION, EACH OFFICER AND DIRECTOR IS REQUIRED TO SUBMIT A LIST OF POTENTIAL CONFLICTS OF INTEREST. IF A CONFLICT EXISTS, THAT PERSON ABSTAINS FROM PARTICIPATION IN DISCUSSIONS OF AND VOTES REGARDING THAT MATTER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS REVIEWS/SETS THE COMPENSATION FOR THE EXECUTIVEDIRECTOR ON AN ANNUAL BASIS. COMPARABILITY DATA IS GATHERED AND REVIEWED INEXECUTIVE SESSION, WITHOUT THE EXECUTIVE DIRECTOR PRESENT. MINUTES OF THESEMEETINGS ARE RECORDED CONTEMPORANEOUSLY. STAFF SALARIES ARE PROPOSED BY THEUSENIX ASSOCIATION 13-3055038 EXECUTIVE DIRECTOR AND ARE APPROVED BY THE BOARD AS PART OF THE BUDGET APPROVAL PROCESS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 15b</FormAndLineReferenceDesc>
        <ExplanationTxt>The Board of Directors reviews and sets the compensation for the Executive Director on an annual basis. Comparability data is gathered and reviewed in an Executive Session, without the Executive Director present. Minutes of these meetings are recorded contemporaneously. Staff salaries are proposed by the Executive Director and are approved by the Board as part of the budget approval process.The members of the Board of Directors do not receive any compensation for their services. The Directors serve on a voluntary basis.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>ASSOCIATION BYLAWS AND POLICIES ARE POSTED ON THE ORGANIZATION'S WEBSITE AT USENIX.ORG. THE FINANCIAL STATEMENTS ARE ALSO POSTED ON THIS SITE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>