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      <MissionDesc>THE NATIONAL SEPTEMBER 11 MEMORIAL &amp; MUSEUM AT THE WORLD TRADE CENTER BEARS SOLEMN WITNESS TO THE TERRORIST ATTACKS OF SEPTEMBER 11, 2001 AND FEBRUARY 26, 1993. RESPECTING THIS SITE MADE SACRED THROUGH LOSS, THE MEMORIAL &amp; MUSEUM REMEMBERS AND HONORS THE NEARLY 3,000 VICTIMS OF THESE ATTACKS AND ALL THOSE WHO RISKED THEIR LIVES TO SAVE OTHERS. IT FURTHER RECOGNIZES THE THOUSANDS WHO SURVIVED AND ALL WHO MANIFESTED EXTRAORDINARY COMPASSION AND LEADERSHIP IN THE WAKE OF THE ATTACKS. DEMONSTRATING THE CONSEQUENCES OF TERRORISM ON INDIVIDUAL LIVES AND ITS IMPACT ON COMMUNITIES AT THE LOCAL, NATIONAL, AND INTERNATIONAL LEVELS, THE MEMORIAL &amp; MUSEUM ATTESTS TO THE TRIUMPH OF HUMAN DIGNITY OVER HUMAN DEPRAVITY AND AFFIRMS AN UNWAVERING COMMITMENT TO THE FUNDAMENTAL VALUE OF HUMAN LIFE.</MissionDesc>
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      <Desc>OPERATIONS:THE 9/11 MEMORIAL CONTINUED OPERATING A WORLD-CLASS, TOP NYC DESTINATION, OPEN DAILY, YEAR-ROUND. THE MEMORIAL, WHICH OPENED IN 2011, HAS WELCOMED OVER 50 MILLION LIFETIME VISITORS THROUGH THE END OF 2019 WITH MORE THAN 6.3 MILLION VISITORS IN 2019 ALONE. THE 9/11 MEMORIAL MUSEUM WELCOMED OVER 3.1 MILLION VISITORS IN 2019, RAISING THE LIFETIME VISITOR TOTAL TO MORE THAN 17 MILLION PEOPLE FROM MAY 2014 THROUGH THE END OF 2019. VISITORS CONTINUE TO TRAVEL TO THE MUSEUM FROM ALL 50 STATES AND OVER 190 COUNTRIES. ALSO, IN 2018, THE 9/11 MEMORIAL MUSEUM RANKED SECOND ON TRIP ADVISOR'S LIST OF TOP MUSEUMS IN THE WORLD, AND WAS AWARDED THE TRAVELER'S CHOICE AWARD, MAKING IT FIRST ON TRIP ADVISOR'S LIST OF TOP MUSEUMS IN THE UNITED STATES. THESE RANKINGS ARE PUBLISHED BIANNUALLY.</Desc>
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        <Desc>MUSEUM &amp; PUBLIC PROGRAMS:IN 2019, THE MUSEUM OPENED A SPECIAL EXHIBITION TITLED "REVEALED: THE HUNT FOR BIN LADEN", WHICH EXAMINES THE INTELLIGENCE AND MILITARY OPERATIONS THAT LED TO A COMPOUND IN ABBOTTABAD, PAKISTAN, WHERE OSAMA BIN LADEN WAS KILLED NEARLY 10 YEARS AFTER 9/11. "K-9 COURAGE", WHICH HONORS THE HUNDREDS OF WORKING DOGS THAT PARTICIPATED IN THE RESPONSE TO THE 9/11 ATTACKS, WAS ALSO INSTALLED IN 2019, IN THE SOUTH TOWER GALLERY.FOR THE 18TH ANNIVERSARY OF THE 9/11 ATTACKS, THE MUSEUM AGAIN PRODUCED THE "TRIBUTE IN LIGHT", THE ICONIC ANNUAL MEMORIAL THAT DOMINATES THE LOWER MANHATTAN SKYLINE FROM DUSK ON SEPTEMBER 11 TO DAWN ON SEPTEMBER 12. THE YEAR 2019 MARKED THE MUSEUM'S FIFTH FULL YEAR OF OPERATION. IN ADDITION TO SERVING VISITORS THROUGH ITS CORE EXHIBITIONS, THE MUSEUM PRESENTED A FULL SEASON OF PUBLIC PROGRAMS, AND MAINTAINED CONTINUAL OBJECT AND EXHIBITION ROTATIONS, WHICH WERE NECESSARY DUE TO CONSERVATION REQUIREMENTS AND LOAN EXPIRATIONS. OBJECTS AND EXHIBITION ROTATIONS ALSO PROVIDED THE OPPORTUNITY TO FEATURE MORE OF THE PERMANENT COLLECTION. THE 9/11 MEMORIAL &amp; MUSEUM ALSO HOSTED MORE THAN 2,100 NYPD RECRUITS, FDNY PROBIES AND FDNY EMERGENCY MEDICAL TEAM PROBIES AS A PART OF THEIR TRAINING IN ADDITION TO HOSTING OVER 200 MILITARY RE-ENLISTMENTS, RETIREMENTS AND PROMOTIONAL CEREMONIES FOR THE UNITED STATES MILITARY ON THE 9/11 MEMORIAL PLAZA. PUBLIC PROGRAMS AND EDUCATIONAL OFFERINGS GREATLY INCREASED DURING THE FIFTH FULL YEAR OF THE MUSEUM'S OPERATION. OVER 180,000 VISITORS TOOK GUIDED TOURS OF THE MEMORIAL AND MUSEUM. WEEKLY YOUTH AND FAMILY PROGRAMS SAW OVER 5,925 PARTICIPANTS IN 125 PROGRAMS, AND 202 YOUTH &amp; FAMILY TOURS WERE OFFERED FOR 3,139 VISITORS. OVER 10,673 STUDENTS TOOK PART IN STUDENT WORKSHOPS AND TOURS IN THE EDUCATION CENTER. NEARLY 2,000 TEACHERS TOOK PART IN OUR PROFESSIONAL DEVELOPMENT WORKSHOP AND EVENTS. OVER 323,000 STUDENTS, FROM ALL 50 STATES AND AROUND THE WORLD, PARTICIPATED IN OUR ANNUAL ANNIVERSARY IN THE SCHOOLS WEBINAR WHICH CONTINUES TO SERVE AS ONE OF OUR SIGNATURE ANNUAL PROGRAMS. TWO FULL SEASONS OF EVENING PUBLIC PROGRAMS IN THE MUSEUM'S AUDITORIUM FOCUSED PRINCIPALLY ON DEEPENING UNDERSTANDING OF 9/11'S CONNECTION TO CURRENT EVENTS AND THE ATTACKS' ONGOING CULTURAL IMPACT. IN TOTAL THE MUSEUM HOSTED 24 PROGRAMS FOR NEARLY 2,500 ATTENDEES IN 2019. ATTENDANCE AT MULTIPLE DAILY SCREENINGS OF THE MUSEUM-PRODUCED FILMS "FACING CRISIS: AMERICA UNDER ATTACK AND "FACING CRISIS: A CHANGED WORLD" ALONG WITH OTHER DAYTIME PROGRAMMING TOTALED OVER 307,000 VISITORS. THE 9/11 MEMORIAL &amp; MUSEUM CONTINUED ITS PROFESSIONAL TRAINING PROGRAMS, WHICH PROVIDE AN IN-DEPTH EXPLORATION OF 9/11 FOR OFFICERS AND AGENTS FROM LAW ENFORCEMENT, INTELLIGENCE AND MILITARY GROUPS TO RECOGNIZE THE SPECIAL CONNECTIONS BETWEEN 9/11 AND THEIR WORK. EACH PROGRAM IS GEARED TOWARD MEETING THE UNIQUE NEEDS AND INTERESTS OF THE AGENCY IN ATTENDANCE. IN 2019, WE HOSTED 87 OF THESE PROGRAMS FOR 5,428 INDIVIDUAL PARTICIPANTS.DURING 2019, MUSEUM VISITORS HELPED TO GROW THE DIGITAL RESOURCES USED IN THE CORE EXHIBITIONS WITH APPROXIMATELY 2,900 NEW VIDEO RECORDINGS OF REFLECTIONS ABOUT 9/11, APPROXIMATELY 725 AUDIO RECORDINGS ABOUT THEIR DAY-OF-9/11 OR AFTERMATH EXPERIENCES, NEARLY 70 AUDIO RECORDINGS FOR THE "IN MEMORIAM" EXHIBITION, NEARLY 205,000 SIGNATURES AND MESSAGES IN THE DIGITAL GUEST BOOK, AROUND 770 NEW PROFILES IN THE REGISTRY OF RESCUE AND RECOVERY WORKERS, AND ABOUT 35 NEW PROFILES IN THE REGISTRY OF PUBLIC MEMORIALS CREATED AROUND THE WORLD IN COMMEMORATION OF 9/11. DRAWING FROM THESE VISITOR CONTRIBUTIONS, THE MUSEUM CONTINUALLY ADDED TO THE EXHIBITIONS, INCLUDING AROUND 25 NEW VOICES IN THE INSTALLATION "REFLECTING ON 9/11 AND MORE THAN 120 UPDATED PROFILES IN THE MEMORIAL EXHIBITION. THANKS TO DONATIONS FROM THE FAMILY, FRIENDS, AND COWORKERS OF THE VICTIMS OF THE TERRORIST ATTACKS OF SEPTEMBER 11, 2001 AND FEBRUARY 26, 1993, THE MUSEUM UPDATED THREE IMAGES IN THE MEMORIAL EXHIBITION'S "WALL OF FACES" THAT PRESENTS PORTRAITS OF THE VICTIMS.SUPPORTING THE PUBLIC-FACING ACTIVITIES OF THE MUSEUM WERE ONGOING EFFORTS TO BUILD, PRESERVE, CATALOGUE, AND MAKE ACCESSIBLE ARTIFACTS FROM THE PERMANENT COLLECTION, THEREBY ENHANCING PUBLIC UNDERSTANDING OF THE 9/11 ATTACKS AND THEIR ONGOING CONSEQUENCES. THROUGH DONATIONS, STRATEGIC PURCHASES, AND INTERVIEWS CONDUCTED BY THE MUSEUM'S ORAL HISTORIANS, THE MUSEUM CONTINUED ACTIVE GROWTH OF ITS PERMANENT COLLECTION WITH NEW OBJECTS, DOCUMENTS, AND ORAL TESTIMONIES. BY THE END OF 2019, THE MUSEUM'S ACQUISITIONS NUMBERED MORE THAN 21,000 THREE-DIMENSIONAL OBJECTS, 45,000 PRINT AND DIGITAL IMAGES, 360 MOVING IMAGES, AND 3,700 ORAL HISTORIES. NOTABLE ACQUISITIONS IN 2019 INCLUDED: "STARS OF THE FOREST: ELEGY FOR 9/11", AN ACRYLIC ON CANVAS PAINTING BY NAOTO NAKAGAWA, AND PENS USED BY PRESIDENT DONALD TRUMP AND SPEAKER OF THE HOUSE NANCY PELOSI TO SIGN THE "NEVER FORGET THE HEROES: JAMES ZADROGA, RAY PFEIFER, AND LUIS ALVAREZ PERMANENT AUTHORIZATION OF THE SEPTEMBER 11TH VICTIM COMPENSATION FUND" ACT. ONE NOTABLE OUTGOING LOAN WAS THE PRESENTATION OF A DAY-LONG SEGMENT FROM WOLFGANG STAEHLE'S HAUNTING TIME-LAPSE WORK, "2001". THROUGHOUT THE DAY ON SEPTEMBER 11, 2019, IN PARTNERSHIP WITH CULTURAL INSTITUTIONS IN ALL FIVE BOROUGHS OF NEW YORK CITY AND IN NEW JERSEY, THE 9/11 MEMORIAL &amp; MUSEUM PRESENTED A SIMULTANEOUS SCREENING OF "2001", EXCERPTED FROM THE ARTIST'S LONGER DUAL-CHANNEL WORK, WHICH CAPTURED THE APPROACH OF HIJACKED PLANE FLIGHT 11 IN MANHATTAN AIRSPACE AND ITS CATACLYSMIC IMPACT IN REAL TIME. SCREENINGS TOOK PLACE AT THE CATHEDRAL OF ST. JOHN THE DIVINE, THE BROOKLYN HISTORICAL SOCIETY, THE QUEENS MUSEUM, PREGONES/PUERTO RICAN TRAVELING THEATER, SNUG HARBOR CULTURAL CENTER &amp; BOTANICAL GARDEN, AND POLLAK THEATER AT MONMOUTH UNIVERSITY.OTHER NOTABLE OUTGOING LOANS ORGANIZED IN 2019 INCLUDED CHILDREN'S ARTWORK FROM THE CALHOUN SCHOOL AND DRAWINGS BY CANADIAN ARTIST JOHN COBURN LOANED TO THE GRACIE MANSION CONSERVANCY FOR AN EXHIBITION TITLED "CATALYST: ART AND SOCIAL CHANGE", RUNNING THROUGH SUMMER 2021, AND A PAIR OF BOOTS WORN BY A 9/11 RECOVERY WORKER LOANED TO THE MUSEUM OF THE CITY OF NEW YORK FOR THEIR EXHIBITION "CITY OF WORKERS, CITY OF STRUGGLE: HOW LABOR MOVEMENTS CHANGED NEW YORK". OVER 20 INCOMING LOANS WERE NEGOTIATED AND SECURED FROM INDIVIDUALS, GOVERNMENT AGENCIES AND COLLECTING INSTITUTIONS FOR THE MUSEUM'S THIRD SPECIAL EXHIBITION, "REVEALED: THE HUNT FOR BIN LADEN," WHICH OPENED IN NOVEMBER 2019, AND FOR ROTATION INTO THE MUSEUM'S CORE AND TEMPORARY DISPLAYS."INSIDE THE COLLECTION", THE MUSEUM'S ONLINE COLLECTIONS CATALOG, HAS QUADRUPLED IN SIZE SINCE ITS LAUNCH IN NOVEMBER 2016, WITH NEARLY 500 NEW OBJECT ENTRIES ADDED IN 2019 ALONG WITH ROBUST CURATORIAL COMMENTARY ENHANCING EXISTING ENTRIES. FOUR NEW FEATURE GALLERIES SHOWCASING WOMEN AND 9/11, WTC ID CARDS, RECOVERY WORKER BOOTS AND KEYS WERE ADDED IN 2019. "INSIDE THE COLLECTION" HAS BEEN FUNCTIONING WELL AS A RESEARCH TOOL, PROVIDING A VALUABLE RESOURCE FOR PERSONNEL ACROSS DEPARTMENTS, STAFF AT OTHER MUSEUMS, SCHOLARS, AND EDUCATORS. APPROXIMATELY 30 EXTERNAL RESEARCH QUERIES WERE FIELDED THROUGH THE SITE.</Desc>
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        <Desc>CONSTRUCTION: ON MAY 30, 2019, THE 17TH ANNIVERSARY OF THE END OF THE 9/11 RESCUE AND RECOVERY EFFORTS, THE MEMORIAL GLADE WAS DEDICATED AND OPENED. THIS WAS THE FIRST MAJOR CAPITAL CONSTRUCTION PROJECT SINCE THE MUSEUM OPENED IN 2014. THE 9/11 MEMORIAL'S ORIGINAL ARCHITECTS, MICHAEL ARAD AND PETER WALKER, DESIGNED THE GLADE WITH GUIDANCE PROVIDED BY 9/11-HEALTH ADVOCATES AND PROVIDERS, 9/11 FAMILY MEMBERS, FIRST RESPONDERS, AND LOWER MANHATTAN RESIDENTS.THE GLADE'S DESIGN INCLUDES A PATHWAY FLANKED BY SIX LARGE STONE MONOLITHS, RANGING FROM 13 TO 18 TONS, THAT ARE INLAID WITH REMNANT WORLD TRADE CENTER STEEL, ACCOMPANIED BY AN INSCRIPTION AT EITHER END OF THE PATHWAY. THE STEEL IS FROM THE ORIGINAL WORLD TRADE CENTER SITE.THE 9/11 MEMORIAL GLADE'S SIX STONE MONOLITHS WERE INSTALLED ON SATURDAY, APRIL 6, 2019. THIS PROCESS REQUIRED A 600-TON CRANE AND AN ASSIST CRANE. EACH MONOLITH WAS LIFTED OVER THE 30- TO 35-FOOT-TALL SWAMP WHITE OAK TREES ON THE MEMORIAL PLAZA AND RIGGED INSIDE THE GLADE CONSTRUCTION SITE.</Desc>
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    <IRS990ScheduleD documentId="RetDoc1040000001">
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III, LINE 1A:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE VALUE OF THE ORGANIZATION'S COLLECTION IS NOT REFLECTED AS AN ASSET IN THE STATEMENT OF FINANCIAL POSITION AND GIFTS OF COLLECTION ITEMS ARE EXCLUDED FROM REVENUE IN THE STATEMENT OF ACTIVITIES. PURCHASES OF COLLECTION ITEMS ARE RECORDED IN THE YEAR IN WHICH THE ITEMS WERE ACQUIRED AS DECREASES IN UNRESTRICTED NET ASSETS IN THE STATEMENT OF ACTIVITIES. PURSUANT TO THE ORGANIZATION'S COLLECTIONS MANAGEMENT POLICY, PROCEEDS FROM DEACCESSIONS ARE TO BE USED EXCLUSIVELY FOR THE ACQUISITION OR DIRECT CARE OF ITEMS FOR THE COLLECTION AND WILL BE RECORDED AS UNRESTRICTED NET ASSETS DESIGNATED FOR ACQUISITIONS OF COLLECTION ITEMS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>SIGNIFICANT USE OF COLLECTION ITEMS: PUBLIC EXHIBITION (I) THE COLLECTIONS OF THE 9/11 MEMORIAL &amp; MUSEUM COMPRISE A COMPREHENSIVE PHYSICAL, VISUAL, AUDIO AND ANALYTICAL RECORD OF THE EVENTS, IMPACT AND LEGACY OF THE SEPTEMBER 11, 2001 TERRORIST ATTACKS ON THE UNITED STATES, INCLUDING MATERIAL RELEVANT TO THE PRECURSOR BOMBING OF THE WORLD TRADE CENTER ON FEBRUARY 26, 1993. THE MUSEUM CURRENTLY DISPLAYS APPROXIMATELY 925 OBJECTS IN ITS PUBLIC EXHIBITION SPACES, WHICH INCLUDES ITEMS ON LOAN AS WELL AS APPROXIMATELY 650 OBJECTS FROM ITS PERMANENT COLLECTION. ANNUAL ROTATIONS OF COLLECTION OBJECTS ARE REGULARLY SCHEDULED FOR VARIOUS INSTALLATIONS THROUGHOUT THE MUSEUM. SCHOLARLY RESEARCH (II) THE MUSEUM WELCOMES RESEARCHERS BY APPOINTMENT AND FACILITATED APPROXIMATELY 30 SUBSTANTIVES, EXTERNAL RESEARCH REQUESTS VIA ITS ONLINE CATALOGUE IN 2019 AS WELL AS ACCOMMODATING ADDITIONAL ON-SITE VISITS BY SCHOLARS AND DOCUMENTARY FILM PRODUCERS REQUESTING PHYSICAL ACCESS TO THESE RESOURCES UNDER THE SUPERVISION OF COLLECTIONS STAFF. IN ADDITION, PERSONNEL IN THE MUSEUM PROGRAMS DIVISION ADDRESSED NUMEROUS PHONE AND E-MAIL CONSULTATIONS WITH OUTSIDE RESEARCHERS. A SEPARATE E-MAIL SYSTEM IMPLEMENTED IN 2014 FOR ADDRESSING GENERAL COLLECTIONS, EDUCATION, AND EXHIBITIONS QUESTIONS CONTINUES TO FACILITATE READY RESPONSES TO MORE COMMONLY-POSED PUBLIC INQUIRIES. MEMBERS OF THE COLLECTIONS, EDUCATION, AND EXHIBITIONS TEAMS WERE ALSO ACTIVE AS PRODUCERS OF RESEARCH IN THEIR RESPECTIVE AREAS OF EXPERTISE, DELIVERING TALKS AT NATIONAL PROFESSIONAL CONFERENCES, LECTURING AT VARIOUS COLLEGE AND PEER INSTITUTIONAL VENUES, TEACHING ON-SITE CLASSES, AND FACILITATING CONTENT-FOCUSED VISITS BY OUTSIDE SCHOLARS, GRADUATE STUDENTS AND PEERS FROM HISTORIC SITES AND MUSEUMS AROUND THE WORLD. UNDER THE AUSPICES OF THE CHIEF CURATOR AND HER COLLECTIONS DEPARTMENT COLLEAGUES, THE MUSEUM CONVENED AN INTERNATIONAL SYMPOSIUM IN OCTOBER 2019 THAT EXAMINED THE CHALLENGES OF URGENT COLLECTING AND PRESERVING OF ARTIFACTS COLLECTED IN TIMES OF CONTEMPORARY CRISIS. MUSEUM PROFESSIONALS, ARCHIVISTS AND DELEGATES FROM CITIES REPRESENTING 17 INSTITUTIONS AND AGENCIES MET AT THE MUSEUM'S CORPORATE OFFICES AND VIA LIVE ZOOM LINKS TO SHARE EXPERIENCES OF COLLECTING EVIDENCE OF MASS VIOLENCE AND ITS AFTERMATH, AND TO OFFER GUIDANCE TO THOSE NEWLY EXPOSED TO THESE CHALLENGES. COMPREHENSIVE TAKE-AWAY NOTES WERE SHARED WITH THIS CONSORTIUM OF PARTICIPANTS, WHO REMAIN IN COMMUNICATION WITH EACH OTHER. PRESERVATION FOR FUTURE GENERATIONS (III) THE MUSEUM ACTIVELY WORKS TO CONSERVE ITS COLLECTION THROUGH PROACTIVE, BEST-PRACTICE STANDARDS FOR THE CORRECT HANDLING AND STORAGE OF MUSEUM COLLECTIONS OF DIVERSE MEDIA. FOR EXAMPLE, NEW ACQUISITIONS ARE REHOUSED AND STORED USING ARCHIVAL MATERIALS. ENVIRONMENTAL AND SECURITY CONTROLS ARE ALSO IN PLACE IN STORAGE AND EXHIBITION SPACES TO ENSURE THE SAFETY OF THE COLLECTION. ONLY TRAINED AND AUTHORIZED PERSONNEL MAY HANDLE COLLECTION OBJECTS. IN 2019, THE MUSEUM'S CONSERVATORS REMEDIATED AND PREPARED OBJECTS FOR "REVEALED: THE HUNT FOR BIN LADEN", THE MUSEUM'S NEWEST TEMPORARY EXHIBITION. NOTABLE AMONG THESE ARTIFACTS ARE AN AFGHAN CARPET HORSE SADDLE USED BY A MEMBER OF THE U.S. SPECIAL FORCES IN FALL 2001 AND A TIN TRUNK APPROPRIATED FROM AN AL-QAEDA SAFEHOUSE. CONSERVATORS ALSO CREATED SEVERAL FACSIMILES OF OBJECTS FOR THAT EXHIBITION. OF SPECIAL NOTE, AND TIED TO AN INDEPENDENT PROJECT FUNDED BY AMERICAN EXPRESS, THE MUSEUM CONSERVATORS DEDICATED THEMSELVES TO IN-DEPTH RESEARCH AND CLOSE EXAMINATION OF A LARGE, SURVIVING SEGMENT OF THE SLURRY WALL, WHICH CONTINUES TO PERFORM AS A BARRIER BETWEEN THE HUDSON RIVER AND WORLD TRADE CENTER'S ORIGINALLY EXCAVATED "BATHTUB." THIS PROJECT HAS BEEN EXPLORING PRESERVATION STRATEGIES FOR MITIGATING ONGOING MOISTURE SEEPAGE THAT HAS BEEN AFFECTING THE WALL'S METAL TIE-BACK RODS AND THE OVERALL VISUAL INTEGRITY OF THIS ICONIC ARTIFACT. LOAN OR EXCHANGE PROGRAMS (IV) IN 2019, THE MUSEUM ORGANIZED 10 LOANS FROM ITS COLLECTIONS. SIX OF THESE WERE FOR THE SIMULTANEOUS PRESENTATION OF A DAY-LONG SEGMENT FROM WOLFGANG STAEHLE'S HAUNTING TIME-LAPSE WORK, 2001, AT CULTURAL INSTITUTION HOST-SITES IN ALL FIVE BOROUGHS OF NEW YORK CITY AND IN A UNIVERSITY IN NEW JERSEY. THE EXCERPT FROM THE LONGER ARTWORK CAPTURED THE APPROACH OF HIJACKED PLANE FLIGHT 11 IN MANHATTAN AIRSPACE AND ITS CATACLYSMIC IMPACT IN REAL TIME. SCREENINGS TOOK PLACE AT THE CATHEDRAL OF ST. JOHN THE DIVINE, THE BROOKLYN HISTORICAL SOCIETY, THE QUEENS MUSEUM, PREGONES/PUERTO RICAN TRAVELING THEATER, SNUG HARBOR CULTURAL CENTER &amp; BOTANICAL GARDEN, AND POLLAK THEATER AT MONMOUTH UNIVERSITY. ADDITIONALLY, THE MUSEUM SECURED 25 NEW INCOMING LOANS FOR DISPLAY IN VARIOUS ON-SITE EXHIBITIONS. THE ORGANIZATION CONTINUES TO BUILD ITS PERMANENT COLLECTION AND HAS ADOPTED A COLLECTIONS MANAGEMENT POLICY TO DEFINE THE SCOPE AND INTELLECTUAL FRAMEWORK OF ASSETS AND THE PROCEDURES BY WHICH THESE MATERIALS ARE ACCESSIONED, CATALOGUED AND PRESERVED. THAT DOCUMENT REVIEWED AND UPDATED AS NEEDED ONCE EVERY FEW YEARS WAS MOST RECENTLY MODIFIED IN 2018 IN PREPARATION FOR THE MUSEUM'S SUBMISSION OF KEY POLICY AND PROCEDURAL DOCUMENTS FOR ITS FIRST-TIME ACCREDITATION REVIEW BY THE AMERICAN ALLIANCE OF MUSEUMS. THROUGH LEADERSHIP OF THE BOARD AND STAFF, THE ORGANIZATION STRIVES TO ESTABLISH, PRESERVE AND DOCUMENT PRIMARY RECORDS, MATERIAL EVIDENCE, SPOKEN TESTIMONY AND OTHER WIDE-RANGING CULTURAL DOCUMENTATION RELATED TO THE SEPTEMBER 11, 2001 AND FEBRUARY 26, 1993 TERRORIST ATTACKS, THE HISTORICAL CONTEXT LEADING UP TO THEM, AND THEIR AFTERMATH AND ONGOING REPERCUSSIONS. THE ORGANIZATION ALSO COLLECTS ARTIFACTS, SPOKEN REMEMBRANCES AND OTHER MATERIALS THAT HONOR AND COMMEMORATE THE VICTIMS OF THE SEPTEMBER 11, 2001 AND FEBRUARY 26, 1993 TERRORIST ATTACKS AND THEIR LEGACIES. THE ORGANIZATION MAKES ITS COLLECTION AVAILABLE AS LOANS TO OTHER MUSEUMS AND PRESENTING INSTITUTIONS, IN THE U.S. AND ABROAD, THAT MEET OUR SECURITY AND ENVIRONMENTAL CRITERIA. THE COLLECTION IS ALSO AVAILABLE, THROUGH ITS CATALOGUE AND BY APPOINTMENT, TO THE PUBLIC FOR RESEARCH PURPOSES AND IN COOPERATION WITH OUR PROFESSIONAL STAFF AND SCHOOL EDUCATORS FOR THE CREATION OF LESSON PLANS THAT ARE THEN MADE AVAILABLE THROUGH OUR WEBSITE. THE MUSEUM'S COLLECTIONS ARE ALSO USED IN EDUCATIONAL AND PUBLIC PROGRAMS AND WIDE-RANGING WEB-BASED CONTENT COMMUNICATIONS FOR THE BENEFIT OF VISITORS. IN 2019, THE ORGANIZATION SPENT $74,190 ON ACQUISITION OF COLLECTION ITEMS. THIS INCLUDED A PAYMENT FOR A SINGULAR, LIFE-SIZED POLAROID PORTRAIT BY TIME-LIFE PHOTOGRAPHER JOE MCNALLY FROM HIS 2001 SERIES, "FACES OF GROUND ZERO", PURCHASE OF FIVE PAINTINGS IN E JAY WEISS'S "9/11 ELEGY" SERIES; A PHOTOGRAPHIC PRINT AND CORRESPONDING DIGITAL IMAGE FROM JONATHAN HYMAN'S "9/11 AND THE AMERICAN LANDSCAPE" SERIES; AND A FIFTH PARTIAL PAYMENT FOR WOLFGANG STAEHLE'S UNIQUE TIME-BASED MEDIA ARTWORK THAT IS BEING ACQUIRED FROM ITS CREATOR OVER SIX INSTALLMENTS, WHICH WILL CONCLUDE IN 2020. THESE PURCHASED ACQUISITIONS WERE FUNDED IN PART BY BOARD-ALLOCATED FUNDS ANNUALLY RESERVED IN A RESTRICTED, ROLL-OVER ACQUISITIONS LINE.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION RECOGNIZES THE EFFECT OF INCOME TAX POSITIONS ONLY IF THOSE POSITIONS ARE MORE LIKELY THAN NOT TO BE SUSTAINED. MANAGEMENT HAS DETERMINED THAT THE ORGANIZATION HAD NO UNCERTAIN TAX POSITIONS THAT WOULD REQUIRE FINANCIAL STATEMENT RECOGNITION OR DISCLOSURE. THE ORGANIZATION IS NO LONGER SUBJECT TO EXAMINATION BY THE APPLICABLE TAXING JURISDICTIONS FOR YEARS PRIOR TO 2016.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI, LINE 4B - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>BAD DEBT EXPENSES 2,265.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 4B - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>BAD DEBT EXPENSES 2,265.</ExplanationTxt>
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      <EmailSolicitationsInd>X</EmailSolicitationsInd>
      <PhoneSolicitationsInd>X</PhoneSolicitationsInd>
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        <USAddress>
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          <CityNm>BROOKLYN</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
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      <LicensedStatesCd>AK</LicensedStatesCd>
      <LicensedStatesCd>AR</LicensedStatesCd>
      <LicensedStatesCd>CA</LicensedStatesCd>
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      <LicensedStatesCd>CT</LicensedStatesCd>
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      <LicensedStatesCd>ME</LicensedStatesCd>
      <LicensedStatesCd>MD</LicensedStatesCd>
      <LicensedStatesCd>MA</LicensedStatesCd>
      <LicensedStatesCd>MI</LicensedStatesCd>
      <LicensedStatesCd>MN</LicensedStatesCd>
      <LicensedStatesCd>MS</LicensedStatesCd>
      <LicensedStatesCd>MO</LicensedStatesCd>
      <LicensedStatesCd>NV</LicensedStatesCd>
      <LicensedStatesCd>NH</LicensedStatesCd>
      <LicensedStatesCd>NJ</LicensedStatesCd>
      <LicensedStatesCd>NM</LicensedStatesCd>
      <LicensedStatesCd>NY</LicensedStatesCd>
      <LicensedStatesCd>NC</LicensedStatesCd>
      <LicensedStatesCd>ND</LicensedStatesCd>
      <LicensedStatesCd>OH</LicensedStatesCd>
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      <LicensedStatesCd>OR</LicensedStatesCd>
      <LicensedStatesCd>PA</LicensedStatesCd>
      <LicensedStatesCd>RI</LicensedStatesCd>
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      <LicensedStatesCd>UT</LicensedStatesCd>
      <LicensedStatesCd>VA</LicensedStatesCd>
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      <LicensedStatesCd>WV</LicensedStatesCd>
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        <Event2Nm>5K RUN/WALK</Event2Nm>
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        <OtherEventsTotalCnt>2</OtherEventsTotalCnt>
        <GrossReceiptsOtherEventsAmt>608025</GrossReceiptsOtherEventsAmt>
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        <GrossRevenueOtherEventsAmt>33280</GrossRevenueOtherEventsAmt>
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        <GrossReceiptsTotalAmt>4407167</GrossReceiptsTotalAmt>
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        <FormAndLineReferenceDesc>SCHEDULE G, PART I, LINE 2B, COLUMN (V)</FormAndLineReferenceDesc>
        <ExplanationTxt>BLUE STATE DIGITAL AND THE ORGANIZATION HAVE A NON-EXCLUSIVE AGREEMENT FOR DIGITAL MARKETING, INCLUDING THE CREATION AND PRODUCTION OF EMAIL CAMPAIGNS AND OTHER DIGITAL FUNDRAISING ACTIVITIES. BLUE STATE DIGITAL IS PAID ON A MONTHLY RETAINER BASIS FOR ALL SERVICES RENDERED AND WAS PAID A TOTAL OF $302,470 IN 2019. THESE EMAIL FUNDRAISING ACTIVITIES GENERATED CONTRIBUTION REVENUE TOTALING $232,489.00 IN 2019.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VIII, LINE 8C AND FORM 990, SCHEDULE G, PART II, LINE 11:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PROPER COMPLETION OF FORM 990 REQUIRES ORGANIZATIONS TO REPORT THE ACTIVITY FROM FUNDRAISING EVENTS THAT SUBSTANTIALLY FURTHER THE ORGANIZATION'S EXEMPT PURPOSE IN PART VIII, LINE 8C AND FORM 990, SCHEDULE G, PART II, LINE 11. FUNDRAISING EVENTS OFTEN GENERATE BOTH CONTRIBUTIONS AND INCOME, SUCH AS WHEN AN INDIVIDUAL PAYS MORE THAN THE RETAIL VALUE FOR THE GOODS OR SERVICES FURNISHED. DURING THE YEAR ENDED DECEMBER 31, 2019, THE MEMORIAL CONDUCTED FOUR SUCCESSFUL FUNDRAISING EVENTS GENERATING CONTRIBUTION REVENUE TOTALING $4,235,203. THIS CONTRIBUTION REVENUE IS REQUIRED TO BE REPORTED ON PART VIII, LINE 1C OF THE FORM 990 AS CONTRIBUTIONS FROM FUNDRAISING EVENTS PER THE IRS INSTRUCTIONS. DIRECT EXPENSES TOTALED $1,611,607 AND AFTER ADDITIONAL REVENUE OF $171,964, PART VIII, LINE 8C AND SCHEDULE G, PART II, LINE 11 SHOWS NET LOSS OF $1,439,643.</ExplanationTxt>
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        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
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        <DeferredCompensationFlngOrgAmt>26444</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MARC CIMA</PersonNm>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JERMEY FRAZIER EVP</PersonNm>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>CHARLES DUNNE EVP</PersonNm>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JOSHUA CHERWIN</PersonNm>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JOSEPH WEINKAM EVP</PersonNm>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>BENJAMIN E MILAKOFSKY</PersonNm>
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      <RltdOrgOfficerTrstKeyEmplGrp>
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        <FormAndLineReferenceDesc>PART I, LINE 4A</FormAndLineReferenceDesc>
        <ExplanationTxt>PURSUANT TO THE TERMS AND CONDITIONS STIPULATED IN EVP, CHIEF FINANCIAL AND ADMINISTRATIVE OFFICER: MARVIN SUCHOFF'S SEVERANCE AGREEMENT, THE ORGANIZATION PAID A SEVERANCE PAYMENT TO MARVIN SUCHOFF IN THE AMOUNT OF $91,539 IN 2019. THIS PAYMENT WAS TREATED AS TAXABLE COMPENSATION TO THE RECIPIENT.</ExplanationTxt>
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      <OtherNonCashContriTableGrp>
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        <FormAndLineReferenceDesc>PART I, COLUMN (B):</FormAndLineReferenceDesc>
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            <BusinessNameLine1Txt>NATIONAL SEPTEMBER 11 MEMORIAL AND MUSEUM AT THE WORLD TRADE CENTER</BusinessNameLine1Txt>
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            <CityNm>NEW YORK</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
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        <LiquidationOfAssetsDetail>
          <AssetsDistriOrExpnssPaidDesc>INVESTMENT</AssetsDistriOrExpnssPaidDesc>
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        <LiquidationOfAssetsDetail>
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        <LiquidationOfAssetsDetail>
          <AssetsDistriOrExpnssPaidDesc>CONTRIBUTIONS RECEIVABLE</AssetsDistriOrExpnssPaidDesc>
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        <LiquidationOfAssetsDetail>
          <AssetsDistriOrExpnssPaidDesc>PREPAID EXPENSES &amp; OTHER ASSETS</AssetsDistriOrExpnssPaidDesc>
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        <LiquidationOfAssetsDetail>
          <AssetsDistriOrExpnssPaidDesc>MERCHANDISE INVENTORY</AssetsDistriOrExpnssPaidDesc>
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        <LiquidationOfAssetsDetail>
          <AssetsDistriOrExpnssPaidDesc>BUILDINGS, PROPERTY AND EQUIPMENT</AssetsDistriOrExpnssPaidDesc>
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          <EIN>611745872</EIN>
          <BusinessName>
            <BusinessNameLine1Txt>NATIONAL SEPTEMBER 11 MEMORIAL AND MUSEUM AT THE WORLD TRADE CENTER</BusinessNameLine1Txt>
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        <LiquidationOfAssetsDetail>
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          <EIN>611745872</EIN>
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      <ReceiveCompensationInd>0</ReceiveCompensationInd>
      <AssetsDistributedInd>1</AssetsDistributedInd>
      <RequiredToNotifyAGInd>1</RequiredToNotifyAGInd>
      <AttorneyGeneralNotifiedInd>1</AttorneyGeneralNotifiedInd>
      <LiabilitiesPaidInd>1</LiabilitiesPaidInd>
      <BondsOutstandingInd>0</BondsOutstandingInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2E:</FormAndLineReferenceDesc>
        <ExplanationTxt>PERSON(S) INVOLVED: PART 1, LINE 2A - ALL DIRECTORS OF THE ORGANIZATION ARE ALSO DIRECTORS OF THE SUCCESSOR ORGANIZATION AS FOLLOWS:MICHAEL R. BLOOMBERGANDREW M. SENCHAKVIRGINIA S. BAUERPAULA GRANT BERRYFRANK BISIGNANODEBRA BURLINGAMEJOHN P. CAHILLRUSSELL L. CARSONKENNETH I. CHENAULTRIC CLARKH. RODGIN COHENKEATING CROWNBILLY CRYSTALROBERT DE NIROSAMUEL A. DIPIAZZA, JR.RICHARD EDELMANCHRISTINE A. FERERANNE M. FINUCANEJENNIFER GLICKMAURICE R. GREENBERGDR. VARTAN GREGORIANPATRICIA E. HARRISLEE A. IELPIROBERT IGERMONICA IKENJEH JOHNSONTHOMAS S. JOHNSONANTHOULA KATSIMATIDESPETER M. LEHRERHOWARD W. LUTNICKJOEL S. MARCUSJ. KEVIN MCCARTHYJULIE MENINIRA M. MILLSTEINHOWARD MILSTEINJOSEPH MOINIANPAUL NAPOLITERENCE O'TOOLEEMILY K. RAFFERTYKEVIN M. RAMPESCOTT RECHLERTERRI J. RICHARDSONTHOMAS H. ROGERJANE ROSENTHALE. JOHN ROSENWALD, JR.AVI SCHICKJERRY I. SPEYERCRAIG ROBERTS STAPLETONJON STEWARTANNE M. TATLOCKDANIEL R. TISHMANSETH WAUGHJEFFREY S. WILPONALICE M. GREENWALDNOELLE LILIENDAVID SHEEHANALLISON BLAISCLIFFORD CHANINJERMEY FRAZIERJOSHUA CHERWIN</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2E:</FormAndLineReferenceDesc>
        <ExplanationTxt>EXPLANATION OF INVOLVEMENT: ON DECEMBER 31, 2019, THE NATIONAL SEPTEMBER 11 MEMORIAL AND MUSEUM AT THE WORLD TRADE CENTER ("MUSEUM ORGANIZATION") WAS GRANTED A PERMANENT CHARTER BY THE NEW YORK STATE BOARD OF REGENTS. ON THAT SAME DAY, THE ORGANIZATION MERGED WITH THE MUSEUM ORGANIZATION AND TRANSFERRED ALL OF ITS NET ASSETS, VALUED AT $608,846,380, TO THE MUSEUM ORGANIZATION. THE MUSEUM ORGANIZATION REMAINS AS THE CONTINUING ENTITY AFTER THE MERGER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 1(F)</FormAndLineReferenceDesc>
        <ExplanationTxt>NAME AND ADDRESS OF RECIPIENT: NAME: NATIONAL SEPTEMBER 11 MEMORIAL AND MUSEUM AT THE WORLD TRADE CENTERADDRESS: 200 LIBERTY STREET, 16TH FLOOR NEW YORK, NY 10281</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleN>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>"MAY THE LIVES REMEMBERED, THE DEEDS RECOGNIZED, AND THE SPIRIT</FormAndLineReferenceDesc>
        <ExplanationTxt>REAWAKENED BE ETERNAL BEACONS, WHICH REAFFIRM RESPECT FOR LIFE, STRENGTHEN OUR RESOLVE TO PRESERVE FREEDOM, AND INSPIRE AN END TO HATRED, IGNORANCE AND INTOLERANCE." IN 2019, THE 9/11 MEMORIAL &amp; MUSEUM CONTINUED TO WELCOME A DIVERSE GROUP OF VISITORS, INCLUDING WORLD LEADERS, AND INFLUENTIAL POLITICAL, MILITARY, AND CULTURAL FIGURES. BEYOND WHAT IS DESCRIBED IN PARTS 4A, 4B AND 4C, THE 9/11 MEMORIAL &amp; MUSEUM CONTINUED ITS SURVIVOR TREE SEEDLING DISTRIBUTION PROGRAM WHICH WAS INAUGURATED IN 2013. EACH YEAR, SEEDLINGS FROM THE SURVIVOR TREE ON THE 9/11 MEMORIAL PLAZA ARE GIVEN TO THREE COMMUNITIES THAT HAVE ENDURED TRAGEDY, AS AN EXPRESSION OF SOLIDARITY AND COMPASSION AND AN AFFIRMATION OF THE POTENTIAL FOR RECOVERY AND RESILIENCE. A TOTAL OF 21 LOCATIONS HAVE BEEN SELECTED AS PART OF THE SEEDLING DISTRIBUTION PROGRAM SINCE SEPTEMBER 2013. IN 2019, SEEDLINGS WERE GIVEN TO THE COMMUNITIES OF LAS VEGAS, NEVADA, IN MEMORY OF THE 58 PEOPLE KILLED AND 400 INJURED BY A GUNMAN AT THE ROUTE 91 HARVEST FESTIVAL IN DECEMBER 2017; PITTSBURGH, PENNSYLVANIA, WHERE IN OCTOBER 2018, 11 PEOPLE WERE KILLED AND SIX WERE INJURED AT THE TREE OF LIFE SYNAGOGUE, THE DEADLIEST ATTACK ON THE JEWISH COMMUNITY IN UNITED STATES HISTORY; AND GREECE, WHERE A SERIES OF WILDFIRES RESULTED IN 102 FATALITIES AND 172 INJURIES IN 2018. CONTINUING A SIMPLE AND POWERFUL TRIBUTE BEGUN IN 2013 SUGGESTED BY A VOLUNTEER, THE 9/11 MEMORIAL &amp; MUSEUM DAILY RECOGNIZES THE BIRTHDAYS OF THE MEN, WOMEN AND CHILDREN WHOSE NAMES ARE INSCRIBED ON THE 9/11 MEMORIAL BY PLACING A SINGLE WHITE ROSE AT EACH PERSON'S NAME ON THEIR BIRTHDAY. THE ROSES STAND AS A MOVING REMINDER OF THE VERY PERSONAL LOSS OF HUMAN LIFE ON SEPTEMBER 11, 2001, AND FEBRUARY 26, 1993, WHILE PROVIDING A SPECIAL WAY TO INVITE VISITORS FROM AROUND THE WORLD TO JOIN US IN HONORING THOSE WHO WERE KILLED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>"MAY THE LIVES REMEMBERED, THE DEEDS RECOGNIZED, AND THE SPIRIT</FormAndLineReferenceDesc>
        <ExplanationTxt>REAWAKENED BE ETERNAL BEACONS, WHICH REAFFIRM RESPECT FOR LIFE, STRENGTHEN OUR RESOLVE TO PRESERVE FREEDOM, AND INSPIRE AN END TO HATRED, IGNORANCE AND INTOLERANCE."</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART III, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>ON 12/31/2019, THE ORGANIZATION MERGED WITH THE NATIONAL SEPTEMBER 11 MEMORIAL AND MUSEUM AT THE WORLD TRADE CENTER (THE "MUSEUM") AND CEASED OPERATIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>MICHAEL BLOOMBERG AND PATRICIA HARRIS HAVE A BUSINESS RELATIONSHIP.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 4</FormAndLineReferenceDesc>
        <ExplanationTxt>IN DECEMBER 2019, THE ORGANIZATION'S BY-LAWS WERE AMENDED IN THREE WAYS: 1. SEVERAL COMMITTEES WERE CONSOLIDATED TO STREAMLINE GOVERNANCE; 2. THE BOARD'S ABILITY TO CREATE SUB-COMMITTEES WHEN NECESSARY WAS EXPLICITLY PROVIDED FOR; AND 3. VICE CHAIRS WERE DESIGNATED TO AUTOMATICALLY SERVE ON THE EXECUTIVE COMMITTEE. COMMITTEE CONSOLIDATION BEGINNING IN THE SUMMER OF 2019, THE NOMINATING AND GOVERNANCE COMMITTEE AND STAFF REVIEWED THE RESPONSIBILITIES AND COMPOSITION OF THE BOARD COMMITTEES, AS OUTLINED IN THE BY-LAWS. BASED ON THIS REVIEW, WHICH WAS CONDUCTED IN AN EFFORT TO MORE EFFECTIVELY STREAMLINE GOVERNANCE, ALIGNING THAT STRUCTURE WITH EXISTING OPERATIONS, THE COMMITTEE, IN DECEMBER 2019, RECOMMENDED THE CONSOLIDATION OF BOTH THE EDUCATION AND EXTERNAL AFFAIRS COMMITTEES, AS WELL AS THE CONSOLIDATION OF THE BUILDINGS AND FINANCE &amp; INVESTMENT COMMITTEES. THE RATIONALE WAS THAT THE EDUCATION AND EXTERNAL AFFAIRS COMMITTEES ALREADY MEET JOINTLY ON A REGULAR BASIS TO ADDRESS OVERLAPPING ISSUES RELATING TO PUBLIC-FACING EDUCATIONAL PROGRAMS, SPECIAL EXHIBITIONS AND OTHER MUSEUM CONTENT. SEPARATELY, THE ORIGINAL CORE FOCUS OF THE BUILDINGS COMMITTEE WAS TO GUIDE CONSTRUCTION OF THE MEMORIAL AND MUSEUM BUT IN OUR CURRENT OPERATING PHASE, FACILITY MANAGEMENT CONNECTS MOST DIRECTLY TO FISCAL MANAGEMENT. THEREFORE, THE MERGER OF THE BUILDINGS COMMITTEE WITH THE FINANCE &amp; INVESTMENT COMMITTEE WILL LIKEWISE CREATE EFFICIENCIES. SUB-COMMITTEE FORMATION: THE BY-LAWS REVISION ALSO PROVIDES THAT IN THE EVENT THE ORGANIZATION UNDERTAKES ANOTHER MAJOR CAPITAL CONSTRUCTION PROJECT OR ENCOUNTERS UNIQUE OPERATIONAL ISSUES, THE BOARD CAN CONSTITUTE A SUB-COMMITTEE OF DIRECTORS WHO WILL PROVIDE OVERSIGHT AND COUNSEL TO STAFF. EXECUTIVE COMMITTEE COMPOSITION: ANOTHER CHANGE TO OUR BY-LAWS IN DECEMBER 2019, CLARIFIED THAT THE BOARD'S VICE-CHAIRS WILL BE MEMBERS OF THE EXECUTIVE COMMITTEE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>A DRAFT OF THE 990 IS SHARED ELECTRONICALLY AND IN PAPER FORM WITH THE AUDIT COMMITTEE AND FINANCE &amp; INVESTMENT COMMITTEE OF THE BOARD OF DIRECTORS. EACH OF THESE COMMITTEES REVIEWS THE DRAFT AND THE AUDIT COMMITTEE IS RESPONSIBLE FOR APPROVING THE 990 IN ADVANCE OF FILING. PRIOR TO FILING, ELECTRONIC AND PAPER COPIES ARE ALSO PROVIDED TO THE FULL BOARD FOR REVIEW, AND THE BOARD HAS AN OPPORTUNITY TO ASK QUESTIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>SINCE ITS INCEPTION, THE ORGANIZATION HAS ENFORCED AND ACTIVELY MONITORED ITS BOARD-APPROVED CONFLICT OF INTEREST POLICY. IN 2014, THE MEMORIAL'S EXISTING POLICY WAS UPDATED TO COMPLY WITH THE REQUIREMENTS OF THE NEW YORK NONPROFIT REVITALIZATION ACT OF 2013. THE POLICY MANDATES THAT ALL EMPLOYEES AND MEMBERS OF THE GOVERNING BODY ANNUALLY SIGN A CONFLICT OF INTEREST QUESTIONNAIRE AND DISCLOSE ANY POTENTIAL OR ACTUAL CONFLICTS THAT MAY EXIST. EMPLOYEES AND MEMBERS OF THE BOARD HAVE BEEN REQUIRED TO COMPLETE CONFLICT OF INTEREST DISCLOSURE QUESTIONNAIRES ANNUALLY SINCE THE ORGANIZATION'S INCEPTION. THE QUESTIONNAIRE MUST ALSO BE COMPLETED ON AN INTERIM BASIS, IF NECESSARY, DUE TO EMERGING CONFLICTS. THE MEMBERS OF THE GOVERNING BODY'S SIGNED CONFLICT OF INTEREST QUESTIONNAIRES ARE FILED WITH THE GENERAL COUNSEL. EMPLOYEES' CONFLICT OF INTEREST FORMS ARE FILED WITH THE SVP-DIRECTOR OF HUMAN RESOURCES. COPIES OF THE DIRECTORS' COMPLETED CONFLICT OF INTEREST QUESTIONNAIRES ARE PROVIDED TO THE MEMBERS OF THE AUDIT AND NOMINATING, GOVERNANCE &amp; COMPENSATION COMMITTEE. IF A CONFLICT IS REPORTED, THE GENERAL COUNSEL IS CONSULTED. IN THE EVENT A RELATED-PARTY TRANSACTION IS CONTEMPLATED, THE TRANSACTION IS EVALUATED AND APPROVED BY A MAJORITY OF THE INDEPENDENT MEMBERS OF THE NOMINATING, GOVERNANCE &amp; COMPENSATION COMMITTEE BEFORE ANY SUCH CONTRACT CAN BE EXECUTED BY THE MEMORIAL. THE AFFECTED MEMBER OF THE GOVERNING BODY IS NOT ENTITLED TO VOTE, DELIBERATE OR OTHERWISE USE HIS OR HER PERSONAL INFLUENCE ON THE MATTER IN QUESTION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS AN ESTABLISHED COMPENSATION POLICY FOR ITS PRESIDENT/CEO AND TOP MANAGEMENT OFFICIALS. THE NOMINATING, GOVERNANCE &amp; COMPENSATION COMMITTEE REVIEWS APPROPRIATE AND ADEQUATE DATA TO DETERMINE THE REASONABLENESS OF COMPENSATION BEING CONSIDERED. THE COMMITTEE USES A VARIETY OF INFORMATION TO DETERMINE THAT THE APPROPRIATE LEVEL OF COMPENSATION IS BEING PAID TO ITS EXECUTIVES. THE COMMITTEE'S DECISION ON THE AMOUNT OF COMPENSATION PAID IS DOCUMENTED IN A CONTEMPORANEOUSLY WRITTEN FORMAT, INCLUDING THE DATE OF THE DECISION, THE MEMBERS PRESENT DURING THE DECISION, THE FULL TERMS OF THE TRANSACTION THAT WAS APPROVED AND THE COMPARABLE DATA USED AND RELIED UPON TO MAKE THE DECISION. THE PROCESS WAS LAST UNDERTAKEN IN 2019.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS FORM 990, FORM 1023 AND CONFLICT OF INTEREST POLICY AVAILABLE FOR PUBLIC INSPECTION AS REQUIRED UNDER SECTION 6104 OF THE INTERNAL REVENUE CODE BY POSTING IT ON ITS WEBSITE. THE FINANCIAL STATEMENTS AND GOVERNING DOCUMENTS AS PART OF FORM 1023 ARE ALSO POSTED ON THE WEBSITE. THE FORM 990 IS ALSO AVAILABLE ON GUIDESTAR.ORG. IN ADDITION, FORMS 990 AND 1023 AS WELL AS THE FINANCIAL STATEMENTS ARE AVAILABLE UPON WRITTEN REQUEST AT 200 LIBERTY STREET, 16TH FL., NEW YORK, NY 10281 OR BY CALLING THE ORGANIZATION DIRECTLY AT 212-312-8800.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>TRANSFER OF NET ASSETS TO THE NATIONAL SEPTEMBER 11 MEMORIAL AND MUSEUM AT THE WORLD TRADE CENTER -608,846,380.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS A COMMITTEE THAT ASSUMES RESPONSIBILITY FOR OVERSIGHT OF THE AUDIT OF ITS FINANCIAL STATEMENTS AND SELECTION OF AN INDEPENDENT ACCOUNTANT. THIS PROCESS DID NOT CHANGE FROM THE PRIOR YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>NATIONAL SEPTEMBER 11 MEMORIAL AND MUSEUM AT THE WTC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>200 LIBERTY PLAZA 16TH FLOOR</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10281</ZIPCd>
        </USAddress>
        <EIN>611745872</EIN>
        <PrimaryActivitiesTxt>TO OWN AND MAINTAIN A MUSEUM AT THE MEMORIAL SITE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>LINE 10</PublicCharityStatusTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>0</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>1</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>1</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>1</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
    </IRS990ScheduleR>
  </ReturnData>
</Return>