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        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>0</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>0</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>0</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>0</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>MARRIOTT BUSINESS SERVICES</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>10400 FERNWOOD ROAD</AddressLine1Txt>
            <CityNm>BETHESDA</CityNm>
            <StateAbbreviationCd>MD</StateAbbreviationCd>
            <ZIPCd>20817</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>CONFERENCE EXPENSES</ServicesDesc>
        <CompensationAmt>468945</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>DROHAN MANAGEMENT GROUP</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>12100 SUNSET HILLS RD STE 130</AddressLine1Txt>
            <CityNm>RESTON</CityNm>
            <StateAbbreviationCd>VA</StateAbbreviationCd>
            <ZIPCd>20190</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>MANAGEMENT SERVICES</ServicesDesc>
        <CompensationAmt>142675</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>2</CntrctRcvdGreaterThan100KCnt>
      <ProgramServiceRevenueGrp>
        <Desc>CONFERENCE</Desc>
        <BusinessCd>541900</BusinessCd>
        <TotalRevenueColumnAmt>820541</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>820541</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>MEMBERSHIP DUES</Desc>
        <BusinessCd>541900</BusinessCd>
        <TotalRevenueColumnAmt>84001</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>84001</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>PUBLISHING</Desc>
        <BusinessCd>511120</BusinessCd>
        <TotalRevenueColumnAmt>43849</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>43849</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>948391</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>31907</TotalRevenueColumnAmt>
        <ExclusionAmt>31907</ExclusionAmt>
      </InvestmentIncomeGrp>
      <OtherRevenueMiscGrp>
        <Desc>ADMINISTRATION</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>1378</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1378</RelatedOrExemptFuncIncomeAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>1378</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>981676</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>949769</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>31907</ExclusionAmt>
      </TotalRevenueGrp>
      <FeesForServicesManagementGrp>
        <TotalAmt>139066</TotalAmt>
        <ManagementAndGeneralAmt>139066</ManagementAndGeneralAmt>
      </FeesForServicesManagementGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>5402</TotalAmt>
        <ManagementAndGeneralAmt>5402</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>4800</TotalAmt>
        <ManagementAndGeneralAmt>4800</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <AdvertisingGrp>
        <TotalAmt>746</TotalAmt>
        <ProgramServicesAmt>746</ProgramServicesAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>1570</TotalAmt>
        <ProgramServicesAmt>226</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1344</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <TravelGrp>
        <TotalAmt>23935</TotalAmt>
        <ProgramServicesAmt>20934</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3001</ManagementAndGeneralAmt>
      </TravelGrp>
      <InsuranceGrp>
        <TotalAmt>2095</TotalAmt>
        <ManagementAndGeneralAmt>2095</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>CONFERENCE</Desc>
        <TotalAmt>681619</TotalAmt>
        <ProgramServicesAmt>681619</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>BANK &amp; CREDIT CARD FEES</Desc>
        <TotalAmt>33282</TotalAmt>
        <ProgramServicesAmt>13048</ProgramServicesAmt>
        <ManagementAndGeneralAmt>20234</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>PRINTING/PUBLISHING</Desc>
        <TotalAmt>25346</TotalAmt>
        <ProgramServicesAmt>13657</ProgramServicesAmt>
        <ManagementAndGeneralAmt>11689</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>TECHNOLOGY</Desc>
        <TotalAmt>20602</TotalAmt>
        <ManagementAndGeneralAmt>20602</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>53639</TotalAmt>
        <ProgramServicesAmt>33697</ProgramServicesAmt>
        <ManagementAndGeneralAmt>19942</ManagementAndGeneralAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>992102</TotalAmt>
        <ProgramServicesAmt>763927</ProgramServicesAmt>
        <ManagementAndGeneralAmt>228175</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>222948</BOYAmt>
        <EOYAmt>154623</EOYAmt>
      </CashNonInterestBearingGrp>
      <AccountsReceivableGrp>
        <BOYAmt>300</BOYAmt>
        <EOYAmt>9599</EOYAmt>
      </AccountsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>67175</BOYAmt>
        <EOYAmt>59097</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>886853</BOYAmt>
        <EOYAmt>882955</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <TotalAssetsGrp>
        <BOYAmt>1177276</BOYAmt>
        <EOYAmt>1106274</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>10543</BOYAmt>
        <EOYAmt>15741</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>154500</BOYAmt>
        <EOYAmt>124531</EOYAmt>
      </DeferredRevenueGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>165043</BOYAmt>
        <EOYAmt>140272</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
      <UnrestrictedNetAssetsGrp>
        <BOYAmt>1012233</BOYAmt>
        <EOYAmt>966002</EOYAmt>
      </UnrestrictedNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>1012233</BOYAmt>
        <EOYAmt>966002</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>1177276</BOYAmt>
        <EOYAmt>1106274</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>-10426</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>-35805</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingOtherInd methodOfAccountingOtherDesc="Modified cash">X</MethodOfAccountingOtherInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>0</FSAuditedInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleC documentId="RetDoc1039700001">
      <SubstantiallyAllDuesNondedInd>0</SubstantiallyAllDuesNondedInd>
      <OnlyInHouseLobbyingInd>0</OnlyInHouseLobbyingInd>
      <AgreeCarryoverPriorYearInd>0</AgreeCarryoverPriorYearInd>
      <DuesAssessmentsAmt>84001</DuesAssessmentsAmt>
    </IRS990ScheduleC>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>INCE HAS ONE CLASS OF FULL MEMBERSHIP: MEMBER. A MEMBER MUST MEET CERTAIN SPECIFIC CRITERIA IN TERMS OF EDUCATION/PROFESSIONAL PUBLICATIONS AND/OR EXPERIENCE. ASSOCIATE AND STUDENT ASSOCIATE STATUS DO NOT REPRESENT FULL MEMBERSHIP. SPECIAL DESIGNATIONS SUCH AS FELLOW, DISTINGUISHED INTERNATIONAL MEMBER, ETC., ARE RECOGNITIONS CONFERRED BY THE BOARD OF DIRECTORS BUT DO NOT REPRESENT SPECIAL CLASSES OF MEMBERSHIP. BOARD CERTIFICATION IS A PROFESSIONAL CERTIFICATION WHICH RECOGNIZES A MEMBER WHO MEETS A CERTAIN RIGOROUS SET OF REQUIREMENTS DEMONSTRATING COMPREHENSIVE EXPERTISE IN NOISE CONTROL ENGINEERING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS ELECT THE OFFICERS AND BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11</FormAndLineReferenceDesc>
        <ExplanationTxt>THE RETURN WILL BE FIRST REVIEWED BY THE EXECUTIVE DIRECTOR. THE RETURN IS THEN REVIEWED BY THE TREASURER AND FILED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>AT THE ANNUAL CONFERENCE, ALL BOARD MEMBERS ARE GIVEN THE ANNUAL DECLARATION OF CONFLICTS TO SIGN. ANY CONFLICTS BROUGHT TO ATTENTION ARE THEN REVIEWED ON A CASE BY CASE BASIS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>COPIES OF THE IRS FORM 990 AND APPLICATION FOR EXEMPTION SHALL BE MADE AVAILABLE UPON REQUEST IN A TIMELY MANNER. FINANCIAL STATEMENTS ARE ALSO PROVIDED UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>