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      <Desc>Global Nuclear Policy Program (GNPP). In 2018, GNPP continued to work with governments, partner organizations, and influential voices around the world to develop, sustain, and build support for effective policies to reduce reliance on nuclear weapons and prevent their spread and their use anywhere in the world. GNPP engaged in public and non-public efforts to guide developments on Euro-Atlantic Security, negotiations with North Korea, and relations with Russia, including convening a number of global meetings of high-profile current and former officials, experts, and next-generation leaders. In 2018, NTI released the Nuclear Weapons in the New Cyber Age report, which focused on needed changes to U.S. nuclear policy and posture. NTI also released a report on Building a Safe, Secure, and Credible NATO Posture, which examined the risks, credibility, and cost of basing U.S. non-strategic nuclear weapons in Europe. To help educate the public about the terms and provisions of the Iran nuclear deal, NTI produced an interactive website and infographic. In the area of multilateral disarmament, NTI has supported preparations for the 2020 review cycle of the Treaty on the Non-Proliferation of Nuclear Weapons. NTI has also begun a multi-year dialogue with governments and experts in support of the 2020 review conference. NTI also continued to support a forum to promote relationship-building and networking among a young generation of leaders from Europe, the United States, and Russia.</Desc>
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      <FactsAndCircumstancesTestTxt>Public Charity "Facts and Circumstances" Narrative for NTI's 2018 Form 990 Schedule A Filing NTI normally receives a substantial part of its support from the general public. NTI also meets the pertinent factors set forth in Regulations Section 1.170A-9(f)(3) as follows: TEN PERCENT SUPPORT LIMITATION: NTI anticipates that its public support will continue to exceed 10 percent as has historically been the case. ATTRACTION OF PUBLIC SUPPORT: NTI receives support from a number of individual donors, foundations and public charities. NTI intends to continue soliciting support through various means, including through its website and by distributing information useful to the public. PERCENTAGE OF FINANCIAL SUPPORT: As noted above, NTI expects that its public support will continue to exceed ten percent, as has historically been the case. Public support percentages over the last several years were: 15.89% in 2014, 20.73% in 2015, 20.3% in 2016, 21.2% in 2017, and 19.91% in 2018. These amounts exceed the 10 percent facts-and-circumstances test as prescribed in Regulations Section 170(b)(1)(A)(v1). SOURCES OF SUPPORT: NTI anticipates that it will continue to receive support from individual, but unrelated donors, foundations and public charities. REPRESENTATIVE GOVERNING BODY: NTI has an international governing body representative of the broad interests of the public, including various former public officials, community leaders and security and policy experts (see a listing in Form 990 Part VII). AVAILABILITY OF PUBLIC FACILITIES OR SERVICES; PUBLIC PARTICIPATION IN PROGRAMS OR POLICIES. To support the public's access to a range of views and information about global threats, NTI offers a number of content rich websites and materials to support public education. The primary website is www.nti.org. The website serves as an information clearing house with unique resources available to all visitors, including a research library with the world's most comprehensive, open-source nonproliferation data collections, profiles of the nuclear, biological and chemical weapons programs of over 40 countries, and issue briefs that offer in-depth analysis on a wide range of international security issues. The website is available free of charge to all interested persons. NTI also conducts regular public outreach and education related to global threats, and provides expert testimony to the US and other governments, as requested. Lastly, NTI-produced documentaries are available online and on DVD, free of charge to interested parties through NTI's website. NTI is not a membership organization.</FactsAndCircumstancesTestTxt>
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        <ExplanationTxt>Senior NTI staff held meetings with U.S Congressional Members and Staff to discuss matters primarily related to biosecurity.</ExplanationTxt>
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        <Amt>1687376</Amt>
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      <RevenueNotReportedFinclStmtAmt>16117</RevenueNotReportedFinclStmtAmt>
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      <ExpensesSubtotalAmt>19263057</ExpensesSubtotalAmt>
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      <ExpensesNotRptFinclStmtAmt>16117</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>19279174</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule D, Part X, Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>Following is the text of the note to NTI's financial statements regarding NTI's liability for uncertain tax positions under FIN 48: NTI is a tax-exempt organization under Section 501(c)(3) of the Internal Revenue Code, as amended. Management evaluated NTI's tax positions for open tax years (tax years subsequent to 2015) and concluded that a provision for uncertain tax positions is not required. NTI has taken no uncertain tax positions nor are there any related penalties or interest that require adjustment to the accompanying financial statements.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule D, Part XI, Line 2d</FormAndLineReferenceDesc>
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        <EmployeeCnt>1</EmployeeCnt>
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      <GrantsToOrgOutsideUSGrp>
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        <PurposeOfGrantTxt>Grant to support the European Leadership Network</PurposeOfGrantTxt>
        <CashGrantAmt>250000</CashGrantAmt>
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      <GrantsToOrgOutsideUSGrp>
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        <PurposeOfGrantTxt>Grant to support work on furthering dialogue between the US and Russia, and visions on IAEA safeguards.</PurposeOfGrantTxt>
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        <PurposeOfGrantTxt>Grant to support the 2018 Nuclear Forum implemented by the Arab Institute for Security Studies</PurposeOfGrantTxt>
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        <MannerOfCashDisbursementTxt>Wire Transfer</MannerOfCashDisbursementTxt>
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        <PurposeOfGrantTxt>Grant to support the 10th anniversary event of the World Institute of Nuclear Security</PurposeOfGrantTxt>
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        <RegionTxt>East Asia and the Pacific</RegionTxt>
        <PurposeOfGrantTxt>Grant to support the Asia Pacific Leadership Network</PurposeOfGrantTxt>
        <CashGrantAmt>30000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>Wire Transfer</MannerOfCashDisbursementTxt>
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        <PurposeOfGrantTxt>Grant to support the Latvian Institute of International Affairs for the Riga Dialogue</PurposeOfGrantTxt>
        <CashGrantAmt>20362</CashGrantAmt>
        <MannerOfCashDisbursementTxt>Wire Transfer</MannerOfCashDisbursementTxt>
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        <DescriptionOfNonCashAsstTxt>0</DescriptionOfNonCashAsstTxt>
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        <PurposeOfGrantTxt>Grant to support the development of a paper on facilitating cross border information sharing and cooperation related to nuclear and radiological security.</PurposeOfGrantTxt>
        <CashGrantAmt>5500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>Wire Transfer</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <DescriptionOfNonCashAsstTxt>0</DescriptionOfNonCashAsstTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule F, Part I, Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>Schedule F, Part I, Line 2- Once a grant proposal is approved, a grant agreement is drawn up between NTI and the grantee. This sets out the purpose of the grant, the budget and details the legal commitments, including compliance with US export control laws and regulations, and limitations on use of funds. All grant agreements are given a number for tracking purposes and are signed by both parties. All grant agreements require that grantees keep accurate and complete books and records of receipts and expenditures made in connection with the grant, maintaining such books and records in a manner that the receipts and expenditures of grant funds are shown separately. The grant agreements require that periodic, at least annual, narrative and financial reports are submitted to NTI detailing work accomplished and expenditure of grant funds against budget. Reports are reviewed by both NTI's program and financial personnel. NTI program personnel are in regular contact with grantee personnel and visit certain key projects to assess progress against grant goals. No grant funds are disbursed until a signed grant agreement has been received, export control checks have been reviewed and approved, and any other appropriate documentation received. For grants that are managed in tranches, or through invoicing, it is generally necessary that all reporting is up to date, and the appropriate stage of the grant project completed prior to subsequent funds being disbursed.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule F, Part I, Line 3</FormAndLineReferenceDesc>
        <ExplanationTxt>NTI uses the accrual method of accounting of expenses and grants</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule F, Part II, Line 3</FormAndLineReferenceDesc>
        <ExplanationTxt>NTI uses the accrual method of accounting of expenses and grants</ExplanationTxt>
      </SupplementalInformationDetail>
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          <BusinessNameLine1Txt>Middlebury Institute of Int'l Studies at Monterey</BusinessNameLine1Txt>
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          <CityNm>Monterey</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
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        <CashGrantAmt>545153</CashGrantAmt>
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        <NonCashAssistanceDesc>0</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>Grant to develop online and digital resources for the NTI website and associated social media channels for the 2019 calendar year.</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>The Center for Advanced Defense Studies</BusinessNameLine1Txt>
        </RecipientBusinessName>
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          <AddressLine2Txt>Suite 750</AddressLine2Txt>
          <CityNm>Washington</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20011</ZIPCd>
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        <RecipientEIN>731681306</RecipientEIN>
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        <PurposeOfGrantTxt>Grant to demonstrate how publicly-available, open source data can support the detection and prevention of nuclear proliferation.</PurposeOfGrantTxt>
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      <RecipientTable>
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          <BusinessNameLine1Txt>Middlebury Institute of Int'l Studies at Monterey</BusinessNameLine1Txt>
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          <CityNm>Monterey</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>93940</ZIPCd>
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        <RecipientEIN>030179298</RecipientEIN>
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        <PurposeOfGrantTxt>Grant to provide a comprehensive assessment of North Korea's nuclear and missile programs and the verification and monitoring arrangements that would be required to verify a freeze and eventual dismantlement of its programs.</PurposeOfGrantTxt>
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      <RecipientTable>
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          <BusinessNameLine1Txt>Middlebury Institute of the Int'l Studies at Monterey</BusinessNameLine1Txt>
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          <CityNm>Monterey</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>93940</ZIPCd>
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        <RecipientEIN>030179298</RecipientEIN>
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        <PurposeOfGrantTxt>Grant to support scholarship awards to Russian students accepted into the nonproliferation dual degree program, geared to address nonproliferation, nuclear policy and global security.</PurposeOfGrantTxt>
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      <RecipientTable>
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          <BusinessNameLine1Txt>Herbert Scoville Jr Peace Fellowship</BusinessNameLine1Txt>
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          <AddressLine1Txt>322 4th Street NE</AddressLine1Txt>
          <CityNm>Washington</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20002</ZIPCd>
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        <RecipientEIN>521755133</RecipientEIN>
        <IRCSectionDesc>501(c)3</IRCSectionDesc>
        <CashGrantAmt>50000</CashGrantAmt>
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        <NonCashAssistanceDesc>0</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>Grant to support to aid the fellowship in continuing its work to develop emerging next-generation leaders in nuclear policy.</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>Johns Hopkins University</BusinessNameLine1Txt>
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          <AddressLine1Txt>3910 Keswick Road</AddressLine1Txt>
          <AddressLine2Txt>N-4327B</AddressLine2Txt>
          <CityNm>Baltimore</CityNm>
          <StateAbbreviationCd>MD</StateAbbreviationCd>
          <ZIPCd>21211</ZIPCd>
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        <RecipientEIN>520595110</RecipientEIN>
        <IRCSectionDesc>501(c)3</IRCSectionDesc>
        <CashGrantAmt>50000</CashGrantAmt>
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        <NonCashAssistanceDesc>0</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>Grant to provide support to Johns Hopkins University staff and research efforts in 2018 for the Biological Security Index.</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>The Aspen Institute</BusinessNameLine1Txt>
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          <AddressLine2Txt>Suite 700</AddressLine2Txt>
          <CityNm>Washington</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20037</ZIPCd>
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        <RecipientEIN>840399006</RecipientEIN>
        <IRCSectionDesc>501(c)3</IRCSectionDesc>
        <CashGrantAmt>50000</CashGrantAmt>
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        <PurposeOfGrantTxt>Grant to hold a series of meetings with Members of Congress and provide education about topics related to global health security.</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>CRDF Global</BusinessNameLine1Txt>
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          <AddressLine1Txt>1776 Wilson Boulevard</AddressLine1Txt>
          <AddressLine2Txt>Suite 300</AddressLine2Txt>
          <CityNm>Arlington</CityNm>
          <StateAbbreviationCd>VA</StateAbbreviationCd>
          <ZIPCd>22209</ZIPCd>
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        <RecipientEIN>541773406</RecipientEIN>
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        <CashGrantAmt>50000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <NonCashAssistanceDesc>0</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>Grant to support the development of female science leaders in emerging countries, providing opportunities to deepen their understanding of international security policy and empower them to serve as role models to a new generation of women around the world.</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>University of Southern California</BusinessNameLine1Txt>
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        <USAddress>
          <AddressLine1Txt>3500 S Figueroa Street</AddressLine1Txt>
          <AddressLine2Txt>Suite 102</AddressLine2Txt>
          <CityNm>Los Angeles</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>90089</ZIPCd>
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        <RecipientEIN>951642394</RecipientEIN>
        <IRCSectionDesc>501(c)3</IRCSectionDesc>
        <CashGrantAmt>50000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <NonCashAssistanceDesc>0</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>Grant to support The Lear Center of USC in its efforts to maintain awareness of the nuclear threat, including by informing TV and movie writers and producers about the dangers posed by nuclear weapons, by connecting them with policy experts and identifying dramatic storylines that also educate.</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>University of Notre Dame</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>724 Grace Hall</AddressLine1Txt>
          <CityNm>Notre Dame</CityNm>
          <StateAbbreviationCd>IN</StateAbbreviationCd>
          <ZIPCd>46556</ZIPCd>
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        <RecipientEIN>350868188</RecipientEIN>
        <IRCSectionDesc>501(c)3</IRCSectionDesc>
        <CashGrantAmt>40000</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <NonCashAssistanceDesc>0</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>Grant to strengthen the voice of the U.S. Catholic community in the debate on nuclear nonproliferation and disarmament by educating a new generation of Catholics- bishops, scholars, and students about the ethical and policy arguments for reducing and eliminating nuclear weapons.</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>Center for Global Development (CGD)</BusinessNameLine1Txt>
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        <USAddress>
          <AddressLine1Txt>2055 L Street NW</AddressLine1Txt>
          <AddressLine2Txt>5th Floor</AddressLine2Txt>
          <CityNm>Washington</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20036</ZIPCd>
        </USAddress>
        <RecipientEIN>522351337</RecipientEIN>
        <IRCSectionDesc>501(c)3</IRCSectionDesc>
        <CashGrantAmt>30404</CashGrantAmt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
        <NonCashAssistanceDesc>0</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>Grant for support in the development of a biological tabletop exercise.</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>11</Total501c3OrgCnt>
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        <FormAndLineReferenceDesc>Schedule I, Part I, Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>Schedule I, Part I, Line 2 - Schedule 1, Part I, Line 2-Once a grant proposal is approved, a grant agreement is drawn up between NTI and the grantee. This sets out the purpose of the grant, the budget and details the legal commitments, including compliance with US export control laws and regulations, and limitations on use of funds. All grant agreements are given a number for tracking purposes and are signed by both parties. All grant agreements require that grantees keep accurate and complete books and records of receipts and expenditures made in connection with the grant, maintaining such books and records in a manner that the receipts and expenditures of grant funds are shown separately. The grant agreements require that periodic, at least annual, narrative and financial reports are submitted to NTI detailing work accomplished and expenditure of grant funds against budget. Reports are reviewed by both NTI's program and financial personnel. NTI program personnel are in regular contact with grantee personnel and visit certain key projects to assess progress against grant goals. No grant funds are disbursed until a signed grant agreement has been received, export control checks have been reviewed and approved, and any other appropriate documentation received. For grants that are managed in tranches, or through invoicing, it is generally necessary that all reporting is up to date, and the appropriate stage of the grant project completed prior to subsequent funds being disbursed.</ExplanationTxt>
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      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule J, Part I, Line 3</FormAndLineReferenceDesc>
        <ExplanationTxt>Schedule J, Part I, Line 3 - NTI's Board of Directors has a compensation committee that annually reviews the compensation of, and makes recommendations for, the compensation of the CEO, President, and all NTI Officers. The recommendations are presented to the full Board of Directors for a vote. The compensation committee is comprised of three independent Board members, and per NTI's bylaws, may not include current Board members to whom NTI pays a salary, or Board members to whom NTI formerly paid a salary. NTI periodically engages a consultant to perform a compensation study and to benchmark NTI's compensation levels. The results of the compensation study are used to inform compensation.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleL documentId="R000009" softwareId="18007995" softwareVersionNum="v1.00">
      <BusTrInvolveInterestedPrsnGrp>
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          <BusinessName>
            <BusinessNameLine1Txt>Davis Pickren Seydel and Sneed</BusinessNameLine1Txt>
          </BusinessName>
        </NameOfInterested>
        <RelationshipDescriptionTxt>The son-in-law of one of NTI's co-chairs is a partner in Davis Pickren Seydel and Sneed.</RelationshipDescriptionTxt>
        <TransactionAmt>90384</TransactionAmt>
        <TransactionDesc>Davis Pickren Seydel and Sneed provides legal services to NTI.</TransactionDesc>
        <SharingOfRevenuesInd>0</SharingOfRevenuesInd>
      </BusTrInvolveInterestedPrsnGrp>
    </IRS990ScheduleL>
    <IRS990ScheduleM documentId="R000010" softwareId="18007995" softwareVersionNum="v1.00">
      <SecuritiesPubliclyTradedGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>5</ContributionCnt>
        <NoncashContributionsRptF990Amt>15109494</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
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      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>Coca Cola donated items</Desc>
        <ContributionCnt>6</ContributionCnt>
        <NoncashContributionsRptF990Amt>5149</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <Form8283ReceivedCnt>0</Form8283ReceivedCnt>
      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>0</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>0</ThirdPartiesUsedInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule M, Part I, Line 9</FormAndLineReferenceDesc>
        <ExplanationTxt>Column b represents the number of contributions.</ExplanationTxt>
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    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="R000011" softwareId="18007995" softwareVersionNum="v1.00">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part III, Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>NTI started a new program called International Fuel Cycle Strategies. This program works to identify, incentivize and implement international nuclear fuel cycle approaches that reinforce key nonproliferation and nuclear security principles and are backstopped with appropriately designed and resourced international safeguards and monitoring measures. The Fuel Cycle program also seeks to strengthen international verification approaches through support of existing verification structures, while also developing new and enhanced international safeguards and monitoring concepts.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>NTI's Corporate Secretary is the son-in-law of one of NTI's Co-Chairs.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>- NTI's Form 990 is prepared by its Finance Department. It is reviewed by NTI's Chief Financial Officer, President, NTI's external auditors, BDO, and by NTI's external legal counsel, Davis Pickren Seydel and Sneed. The Form 990 is submitted to NTI's Audit Committee, which reviews the form on behalf of the entire Board. The entire Board is briefed on the contents of the form and the date of the filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>- NTI's bylaws require that a copy of NTI's Conflict of Interest Policy, as adopted by the Board, be furnished to each Board member, officer, and staff member. NTI prohibits officers and staff from participating or engaging in any activity for which a conflict of interest exists. Officers and staff also give consideration to perceived conflicts of interest. Board members are recused from decisions of the Board in which a conflict of interest might arise. Board members, officers, and staff are required to disclose to NTI any related party and any reportable affiliates that may apply for, or otherwise be considered by NTI, for a grant or other financial transaction.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>NTI's Board of Directors has a compensation committee that annually reviews the compensation of, and makes recommendations for, the compensation of the CEO, President, and all NTI Officers. The recommendations are presented to the full Board of Directors for a vote. The compensation committee is comprised of three independent Board members, and per NTI's bylaws, may not include current Board members to whom NTI pays a salary, or Board members to whom NTI formerly paid a salary. NTI periodically engages a consultant to perform a compensation study and to benchmark NTI's compensation levels. The results of the compensation study are used to inform compensation.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>NTI's website includes links to downloadable copies of its annual reports, which include financial data. Other information is available upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, Line 11g</FormAndLineReferenceDesc>
        <ExplanationTxt>Expenses included in this line relate to employment recruiting fees ($47,344), honoraria ($14,750), temporary help ($69,590), photography (35,812), employee processing costs for Payroll, 401K, and flexible spending ($14,251)and professional services other than legal fees, accounting fees, and fundraising fees ($3,108,563).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, Line 9</FormAndLineReferenceDesc>
        <ExplanationTxt>Prior year refunded grant</ExplanationTxt>
      </SupplementalInformationDetail>
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</Return>