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        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Fall Meeting and Chapman Travel Grant</TypeOfAssistanceTxt>
        <RegionTxt>Europe (Including Iceland &amp; Greenland)</RegionTxt>
        <RecipientCnt>89</RecipientCnt>
        <CashGrantAmt>89050</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Fall Meeting and Chapman Travel Grant</TypeOfAssistanceTxt>
        <RegionTxt>Middle East and North Africa</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Fall Meeting and Chapman Travel Grant</TypeOfAssistanceTxt>
        <RegionTxt>Russia and Neighboring States</RegionTxt>
        <RecipientCnt>6</RecipientCnt>
        <CashGrantAmt>7101</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Fall Meeting and Chapman Travel Grant</TypeOfAssistanceTxt>
        <RegionTxt>South America</RegionTxt>
        <RecipientCnt>31</RecipientCnt>
        <CashGrantAmt>32942</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Fall Meeting and Chapman Travel Grant</TypeOfAssistanceTxt>
        <RegionTxt>South Asia</RegionTxt>
        <RecipientCnt>19</RecipientCnt>
        <CashGrantAmt>16787</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
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      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Fall Meeting and Chapman Travel Grant</TypeOfAssistanceTxt>
        <RegionTxt>Sub-Saharan Africa</RegionTxt>
        <RecipientCnt>10</RecipientCnt>
        <CashGrantAmt>9069</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </ForeignIndividualsGrantsGrp>
      <TransferToForeignCorpInd>0</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>0</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>0</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>0</ForeignPartnershipInd>
      <BoycottCountriesInd>0</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>PRIOR TO MAKING AN AWARD TO A FOREIGN NATIONAL, AGU CHECKS THE EXCLUDED PARTIES LIST SYSTEM (HTTPS://WWW.EPLS.GOV/) TO ENSURE THAT THE RECIPIENT IS ALLOWED TO RECEIVE THESE FUNDS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleF>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1200 NEW YORK AVENUE NW</AddressLine1Txt>
          <CityNm>WASHINGTON</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20005</ZIPCd>
        </USAddress>
        <RecipientEIN>530196568</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>7830</CashGrantAmt>
        <PurposeOfGrantTxt>Support for Congressional Fellows and placement resources</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>Purdue University SAGE program</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>550 Stadium Mall Drive</AddressLine1Txt>
          <CityNm>WEST LAFAYETTE</CityNm>
          <StateAbbreviationCd>IN</StateAbbreviationCd>
          <ZIPCd>47907</ZIPCd>
        </USAddress>
        <RecipientEIN>356002041</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>10000</CashGrantAmt>
        <PurposeOfGrantTxt>Summer of Applied Geophysical Experience (SAGE) Program for 2016</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>2</Total501c3OrgCnt>
      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
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        <GrantTypeTxt>Chapman Travel Grant</GrantTypeTxt>
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        <CashGrantAmt>46508</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Data Visualization and Storytelling Competition Grand</GrantTypeTxt>
        <RecipientCnt>11</RecipientCnt>
        <CashGrantAmt>17500</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>FM Travel Grant</GrantTypeTxt>
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      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>OSM Travel Grant</GrantTypeTxt>
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        <CashGrantAmt>12500</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Congressional Science Fellows</GrantTypeTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>147333</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Other Travel Grants</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>2000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Horton Grants</GrantTypeTxt>
        <RecipientCnt>9</RecipientCnt>
        <CashGrantAmt>32265</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EXPENSES INCLUDED IN THE BUDGETS ARE REVIEWED PRIOR TO MAKING AN OFFER OF AN AWARD AND THE PRESENTATION OF A CONTRACT. POTENTIAL AWARDEES ARE ASKED TO REVISE THEIR BUDGETS, WHERE NECESSARY, AND TO PRESENT AN ANNOTATED BUDGET NARRATIVE EXPLAINING PROPOSED EXPENSES. PRIOR TO TRANSFERRING ANY FUNDS, WE CONFIRM THAT THE RECIPIENT IS NOT LISTED ON EITHER THE TREASURY DEPARTMENT OFFICE OF TERRORISM AND FINANCIAL SANCTIONS LIST OR THE GSA EXCLUDED PARTIES LIST SYSTEM. THE PRINCIPAL INVESTIGATOR AND THE INSTITUTION'S FINANCIAL OFFICER ARE PRESENTED WITH COPIES OF FINANCIAL REGULATIONS, AS WELL AS REFERENCES WITH ADDITIONAL INFORMATION. THE AWARDEES ARE INSTRUCTED THAT UPON SIGNATURE IT IS EXPECTED THAT THEY WILL ABIDE BY ALL STIPULATIONS OF THE CONTRACT AS WELL AS THE ACCOMPANYING INFORMATION, ESPECIALLY IN REGARD TO REPORTING REQUIREMENTS. THE NAME OF THE CONTRACT OFFICER IS INCLUDED IN ALL CORRESPONDENCE AND RECIPIENTS ARE REQUIRED TO REMAIN IN CONTACT WITH THE CONTRACT OFFICER THROUGHOUT THE TIME OF THE GRANT AWARD. AWARDEES ARE ALSO REQUIRED TO REPORT ON CHANGES IN PROPOSED EXPENSES IF THOSE CHANGES EXCEED 20% OF THE FUNDS IN ANY INDIVIDUAL CATEGORY, DETAILED FINANCIAL REPORTS, INCLUDING BACKUP DOCUMENTATION, ARE REQUIRED AT SUITABLE INTERVALS DURING THE PROJECTS. THE GRANT AWARDS ARE MADE IN INSTALLMENTS BASED ON A PRE-DETERMINED PAYMENT SCHEDULE. FINAL PAYMENTS ARE MADE ONLY AFTER REVIEW OF THE FINANCIAL STATEMENTS AND TECHNICAL REPORTS AND ARE BASED ON ACTUAL EXPENSES AND CONFIRMATION THAT THE AWARDEE HAS MET CONTRACT OBLIGATIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
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      <IndependentConsultantInd>X</IndependentConsultantInd>
      <Form990OfOtherOrganizationsInd>X</Form990OfOtherOrganizationsInd>
      <WrittenEmploymentContractInd>X</WrittenEmploymentContractInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>1</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>1</SupplementalNonqualRtrPlanInd>
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      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
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        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>18466</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>14188</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>201727</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Rajul Pandya</PersonNm>
        <TitleTxt>Program Director</TitleTxt>
        <BaseCompensationFilingOrgAmt>163696</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>450</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>17309</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>1229</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>182684</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Patricia Yaya</PersonNm>
        <TitleTxt>Director, Human Resources</TitleTxt>
        <BaseCompensationFilingOrgAmt>149858</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>697</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>15858</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>5155</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>171568</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 1a</FormAndLineReferenceDesc>
        <ExplanationTxt>AGU MAY PROVIDE BUSINESS OR FIRST CLASS TRAVEL (ON A CASE-BY-CASE BASIS) FOR THE AGU PRESIDENT WHEN MULTIPLE TRIPS (IN EXCESS OF 6 HOURS) TO ATTEND AGU BUSINESS MEETINGS ARE REQUIRED. ADDITIONALLY, THE CEO'S EMPLOYMENT AGREEMENT ALLOWS FOR BUSINESS OR FIRST CLASS TRAVEL FOR TRIPS IN EXCESS OF 5 HOURS. AGU DOES NOT INCLUDE THE COST OF FIRST CLASS OR BUSINESS TRAVEL AS TAXABLE INCOME TO THE CEO OR PRESIDENT. AGU WILL PAY ANNUALLY ALL REASONABLE EXPENSES OF THE CEO'S SPOUSE TO ACCOMPANY HER TO THE FALL MEETING AND ONE OTHER AGU MEETING OF HER CHOICE WHICH IS TAXABLE INCOME TO THE CEO.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Lines 4a-b</FormAndLineReferenceDesc>
        <ExplanationTxt>CHRISTINE W. MCENTEE: $170,629, SECTION 457 PLAN CURRENT YEAR PAYOUT - SEE SCHEDULE J, PART II COLUMN (F).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 7</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EXECUTIVE COMMITTEE, IN ITS SOLE DISCRETION, MAY PAY EXECUTIVE AN ANNUAL PERFORMANCE BONUS OF UP TO TEN PERCENT (10%) OF HER SALARY BASED ON HER ACHIEVING EXPLICIT PERFORMANCE GOALS MANUALLY SET FORTH ANNUALLY BY THE EXECUTIVE AND THE EXECUTIVE COMMITTEE DURING THE REVIEW PERIOD.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleK documentId="RetDoc1053100001">
      <TaxExemptBondsIssuesGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <IssuerName>
          <BusinessNameLine1Txt>DISTRICT OF COLUMBIA</BusinessNameLine1Txt>
        </IssuerName>
        <BondIssuerEIN>536001131</BondIssuerEIN>
        <CUSIPNum>254839K77</CUSIPNum>
        <BondIssuedDt>2006-05-10</BondIssuedDt>
        <IssuePriceAmt>8095000</IssuePriceAmt>
        <PurposeDesc>REMARKET 09/29/93 BOND ISSUE</PurposeDesc>
        <DefeasedInd>0</DefeasedInd>
        <OnBehalfOfIssuerInd>0</OnBehalfOfIssuerInd>
        <PoolFinancingInd>0</PoolFinancingInd>
      </TaxExemptBondsIssuesGrp>
      <TaxExemptBondsProceedsGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <RetiredAmt>4070000</RetiredAmt>
        <TotalProceedsAmt>8095000</TotalProceedsAmt>
        <InReserveFundAmt>485027</InReserveFundAmt>
        <SubstantialCompletionYr>1994</SubstantialCompletionYr>
        <CurrentRefundingInd>1</CurrentRefundingInd>
        <AdvanceRefundingInd>0</AdvanceRefundingInd>
        <FinalAllocationMadeInd>1</FinalAllocationMadeInd>
        <AdequateBooksAndRecMaintInd>1</AdequateBooksAndRecMaintInd>
      </TaxExemptBondsProceedsGrp>
      <TaxExemptBondsPrivateBusUseGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <OwningBondFinancedPropertyInd>0</OwningBondFinancedPropertyInd>
        <AnyLeaseArrangementsInd>0</AnyLeaseArrangementsInd>
        <MgmtContractBondFincdPropInd>0</MgmtContractBondFincdPropInd>
        <AnyResearchAgreementsInd>0</AnyResearchAgreementsInd>
        <BondIssMeetPrvtSecPymtTestInd>0</BondIssMeetPrvtSecPymtTestInd>
        <ChangeInUseBondFinancedPropInd>0</ChangeInUseBondFinancedPropInd>
        <ProcsNonqualifiedBondRemdtdInd>1</ProcsNonqualifiedBondRemdtdInd>
      </TaxExemptBondsPrivateBusUseGrp>
      <TaxExemptBondsArbitrageGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <Form8038TFiledInd>0</Form8038TFiledInd>
        <RebateNotDueYetInd>0</RebateNotDueYetInd>
        <ExceptionToRebateInd>0</ExceptionToRebateInd>
        <NoRebateDueInd>1</NoRebateDueInd>
        <VariableRateIssueInd>0</VariableRateIssueInd>
        <HedgeIdentifiedInBksAndRecInd>0</HedgeIdentifiedInBksAndRecInd>
        <GrossProceedsInvestedInGICInd>0</GrossProceedsInvestedInGICInd>
        <GrossProceedsInvestedInd>0</GrossProceedsInvestedInd>
        <WrittenProcToMonitorReqsInd>1</WrittenProcToMonitorReqsInd>
      </TaxExemptBondsArbitrageGrp>
      <ProceduresCorrectiveActionGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <ProceduresCorrectiveActionInd>1</ProceduresCorrectiveActionInd>
      </ProceduresCorrectiveActionGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Date Rebate Computation Performed</FormAndLineReferenceDesc>
        <ExplanationTxt>Issuer Name: DISTRICT OF COLUMBIA Date the Rebate Computation was Performed: 05/28/2015</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE K, PART II, LINE 13</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BONDS WERE ORIGINALLY ISSUED IN 1993, AND THE BUILDING WAS SUBSTANTIALLY COMPLETED IN 1994. THE BONDS WERE REMARKETED IN 2006.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleK>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 1</FormAndLineReferenceDesc>
        <ExplanationTxt>There shall be an Executive Committee composed of the president, president-elect, immediate past president, general secretary, and the international secretary. The executive director shall be a nonvoting ex-officio member. The Executive Committee shall have the authority to conduct the affairs of the Union between meetings of the Board, provided that the Executive Committee may not contradict Board policy or decisions. Actions of the Executive Committee must be reported to the Board within ten days. The Executive Committee may also meet by conference call or other electronic means provided that all persons may hear and speak to one another at the same time. The Executive Committee may take action by written consent signed by all members.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>There shall be the following membership categories: A. Member - Individuals who are professionally engaged in or associated with Earth and space science are eligible to become members of the Union. Members shall be entitled to all rights and privileges of membership, including the right to receive publications and other materials, subscribe to Union journals, purchase Union publications at member rates as established by the Board of Directors, serve as elected officers of the Union, sections and focus groups, and vote on matters brought before the membership; B. Fellow - A member who has attained acknowledged eminence in Earth and space science, and who has been elected by a committee of fellows appointed by the president shall be inducted as a fellow. A member of the Union who is a recipient of an AGU medal shall automatically be made a fellow. The number of fellows elected in each annual class shall not exceed 0.1% of the total membership at the end of the year preceding installation of that class; C. Honorary Fellow - A person who has provided services to the Union or made exceptional contributions to the fields of Earth and space science may be elected an honorary fellow by the Council; D. Associate - An individual who desires identification with the Union and wishes to support its objectives but does not meet the qualifications of membership may become an associate. Associate members may not vote or hold office, but shall otherwise have all of the rights of membership; and E. Affiliate - A corporation, academic institution, or other organization interested in Earth and space science may designate a representative to become an affiliate. The designated representative shall enjoy the privileges of a member.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL ELIGIBLE MEMBERS MAY VOTE TO ELECT THE UNION OFFICERS (PRESIDENT, INTERNATIONAL SECRETARY AND GENERAL SECRETARY/TREASURER) AND CAN VOTE IN UP TO THREE SECTIONS OF THEIR CHOICE TO ELECT SECTION PRESIDENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EXECUTIVE COMMITTEE OF THE BOARD REVIEWS THE 990 IN DEPTH WITH THE CEO, COO, AND CFO OF AGU. THE ENTIRE BOARD OF DIRECTORS IS GIVEN THE OPPORTUNITY TO REVIEW AND COMMENT ON AN ELECTRONIC COPY OF THE FORM 990 PRIOR TO ITS FILING WITH THE INTERNAL REVENUE SERVICE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>IF AN OFFICER, DIRECTOR, TRUSTEE OR EMPLOYEE HAS ANY INDICATION THAT HE OR SHE HAS A DIRECT OR INDIRECT CONFLICT OF INTEREST, OR RECEIVES INFORMATION REGARDING A POTENTIAL CONFLICT OF INTEREST OF ANOTHER, THE CEO, COO AND DIRECTOR OF HUMAN RESOURCES MUST BE IMMEDIATELY NOTIFIED. ALL AGU OFFICERS, DIRECTORS, TRUSTEES, AND COMMITTEE MEMBERS ARE REQUIRED TO SIGN A CONFLICT OF INTEREST AT THE START OF THEIR TENURE. EMPLOYEES ARE REQUIRED TO SIGN A CONFLICT OF INTEREST POLICY AT THE START OF EMPLOYMENT. EMPLOYEES AND VOLUNTEERS ARE ASKED TO REVIEW AND UPDATE THEIR CONFLICT OF INTEREST STATEMENT ANNUALLY IF NECESSARY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>15A - CEO COMPENSATION IS ESTABLISHED USING THE METHODS INDICATED ON SCHEDULE J, PART I, LINE 3. COMPENSATION OF THE EXECUTIVE DIRECTOR WAS LAST REVIEWED BY THE EXECUTIVE COMMITTEE OF THE AGU BOARD IN FEBRUARY 2015. 15B - COMPENSATION OF OTHER OFFICERS OR KEY EMPLOYEES IS DETERMINED USING AN INDEPENDENT COMPENSATION CONSULTANT, COMPENSATION SURVEYS, AND FORM 990 COMPARISON DATA. COMPENSATION APPROVAL FOR AGU OFFICERS AND KEY EMPLOYEES IS THE RESPONSIBILITY OF THE CEO. The CEO shares the comparable market data on salary ranges with the Executive Committee.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>AGU'S GOVERNING DOCUMENTS AND CONFLICT OF INTEREST POLICY ARE AVAILABLE TO THE PUBLIC ONLINE AT WWW.AGU.ORG AND FINANCIAL STATEMENTS ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, line 11g</FormAndLineReferenceDesc>
        <ExplanationTxt>other professional fees: Program service expenses 1,899,937. Management and general expenses 2,223,733. Fundraising expenses 351,882. Total expenses 4,475,552.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART IX, LINE 24</FormAndLineReferenceDesc>
        <ExplanationTxt>THERE IS AN ALLOCATION OF OVERHEAD INCLUDED ON FORM 990, PART IX, LINE 24, COLUMNS (B), (C), AND (D) THAT IS NOT ALLOCABLE TO ANY NATURAL EXPENSE LINE ITEM IN PART IX, BUT RATHER IS ALLOCABLE IN A GENERAL FASHION TO THE ORGANIZATION'S PROGRAM SERVICE ACTIVITIES AS REPORTED IN ITS AUDITED FINANCIAL STATEMENTS. THIS ALLOCATION WAS MADE SO AS TO BETTER ALIGN TOTAL PROGRAM SERVICE EXPENSES WITH THE ORGANIZATION'S AUDITED FINANCIAL STATEMENTS, WHICH FAIRLY REPORT THE ORGANIZATION'S PROGRAM SERVICE EXPENDITURES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, line 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>NET GAIN ON INTEREST RATE COLLAR 122,583. CHANGE IN POST-RETIREMENT BENEFITS 78,051.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990 Part IX Line 2c</FormAndLineReferenceDesc>
        <ExplanationTxt>The oversight process remains unchanged from the prior year.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>