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      <MissionDesc>THE SOUTHERN ALLIANCE FOR CLEAN ENERGY PROMOTES RESPONSIBLE ENERGY CHOICES TO ENSURE CLEAN, SAFE AND HEALTHY COMMUNITIES THROUGHOUT THE SOUTHEAST.</MissionDesc>
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      <Desc>CLEAN ENERGY SACE PUBLISHED AN UPDATED VERSION OF OUR SOLAR IN THE SOUTHEAST REPORT IN 2023. WE ALSO PUBLISHED A NEW INSTALLMENT IN 2023 OF TRANSPORTATION ELECTRIFICATION IN THE SOUTHEAST IN PARTNERSHIP WITH ATLAS PUBLIC POLICY TO TRACK AND CONTEXTUALIZE THE SOUTHEASTS EV MARKET AND EXAMINE SIX KEY INDICATORS ACROSS THE REGION. OUR ANNUALLY-PUBLISHED REPORTS TRACK MARKET, UTILITY, AND PUBLIC POLICY TRENDS ACROSS THE REGION IMPACTING THE ADVANCEMENT (OR STALLS IN PROGRESS, WHEN APPROPRIATE) OF CLEAN ENERGY. THROUGH THESE ANNUAL REPORTS, SACE RANKS THE PERFORMANCE OF OUR REGION'S UTILITIES IN COMPARISON WITH THEIR REGIONAL AND NATIONAL PEERS. THESE KEY ANNUAL REPORTS PROVE TO BE IMMENSELY VALUABLE TOOLS WHEN WE APPEAR BEFORE UTILITIES AND REGULATORS, AS WELL AS IN OUR ADVOCACY FOR SMART PUBLIC POLICY. TO HELP ENSURE THAT FEDERAL MONEY IS INVESTED EFFICIENTLY AND EQUITABLY TO SECURE THE BEST OUTCOMES FOR OUR REGIONS COMMUNITIES, PARTICULARLY THE UNDERSERVED AND DISADVANTAGED, SACE HAS CREATED THE ELECTRIFY THE SOUTH COLLABORATIVE. IN 2023, WITH FUNDING FROM A GENEROUS MOVEMENT INFRASTRUCTURE GRANT FROM MOSAIC, WE HOSTED THE INAUGURAL ELECTRIFY THE SOUTH COLLABORATIVE, A TWO-DAY MEETING OF SOUTHEASTERN LOCAL GOVERNMENTS IN SAVANNAH, GEORGIA. THE EVENT, WHICH WAS CO-HOSTED BY THE SOUTHEAST SUSTAINABILITY DIRECTORS NETWORK (SSDN), PROVIDED 53 PARTICIPANTS FROM 36 LOCAL GOVERNMENTS AN OPPORTUNITY TO DISCUSS THE BARRIERS LOCAL GOVERNMENTS FACE PURSUING AND IMPLEMENTING FEDERAL ELECTRIC TRANSPORTATION DOLLARS FROM IRA AND BIL AND WAYS TO OVERCOME THEM. EACH PANEL, SMALL-GROUP DISCUSSION, AND REFLECTIVE EXERCISE WAS DESIGNED TO INFORM PARTICIPANTS, STIMULATE DEEPENING DIALOG, AND INVITE PEER-TO-PEER COLLABORATION.</Desc>
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        <Desc>CLIMATE SACE PUBLISHED AN UPDATED VERSION OF OUR "TRACKING DECARBONIZATION IN THE SOUTHEAST" REPORT IN 2023. THIS ANNUALLY-PUBLISHED REPORT TRACKS MARKET, UTILITY, AND PUBLIC POLICY TRENDS ACROSS THE REGION IMPACTING THE ADVANCEMENT (OR STALLS IN PROGRESS, WHEN APPROPRIATE) OF CLEAN ENERGY. THROUGH OUR ANNUAL REPORTS, SACE RANKS THE PERFORMANCE OF OUR REGION'S UTILITIES IN COMPARISON WITH THEIR REGIONAL AND NATIONAL PEERS. THESE KEY ANNUAL REPORTS PROVE TO BE IMMENSELY VALUABLE TOOLS WHEN WE APPEAR BEFORE UTILITIES AND REGULATORS, AS WELL AS IN OUR ADVOCACY FOR SMART PUBLIC POLICY. DURING SUMMER OF 2023, SACE LAUNCHED THE CLEAN ENERGY GENERATION, OUR GRASSROOTS ENGAGEMENT CAMPAIGN THAT BRINGS PEOPLE OF ALL AGES TOGETHER TO ADDRESS THE CLIMATE CRISIS AND CREATE A HEALTHY FUTURE WHERE OUR FAMILIES, COMMUNITIES, AND PLANET WILL THRIVE. SINCE THE CLEAN ENERGY GENERATION LAUNCHED ON JUNE 28TH, 2023, WE HAVE HAD OVER 700 MEMBERS SIGN UP TO GET INVOLVED. WE ARE CONTINUING TO RECRUIT NEW MEMBERS THROUGH QUARTERLY WEBINARS AND HELPING OUR EXISTING MEMBERS GET INVOLVED AND STAY UP TO DATE ON CLEAN ENERGY NEWS THROUGH MONTHLY MEMBER CALLS, BLOGS, AND A MONTHLY NEWSLETTER. WE ARE ALSO DEVELOPING TOOLKITS FOR MEMBERS TO USE FOR COMMUNITY OUTREACH ABOUT IMPORTANT DEVELOPMENTS AND OPPORTUNITIES FOR CLEAN ENERGY AND CLIMATE.</Desc>
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        <Desc>ENERGY EFFICIENCY SACE PUBLISHED AN UPDATED VERSION OF OUR ENERGY EFFICIENCY IN THE SOUTHEAST REPORT IN 2023. THIS ANNUALLY-PUBLISHED REPORT TRACKS MARKET, UTILITY, AND PUBLIC POLICY TRENDS ACROSS THE REGION IMPACTING THE ADVANCEMENT (OR STALLS IN PROGRESS, WHEN APPROPRIATE) OF ENERGY EFFICIENCY. THROUGH OUR ANNUAL REPORTS, SACE RANKS THE PERFORMANCE OF OUR REGION'S UTILITIES IN COMPARISON WITH THEIR REGIONAL AND NATIONAL PEERS. THESE KEY ANNUAL REPORTS PROVE TO BE IMMENSELY VALUABLE TOOLS WHEN WE APPEAR BEFORE UTILITIES AND REGULATORS, AS WELL AS IN OUR ADVOCACY FOR SMART PUBLIC POLICY. FEELING PUBLIC AND OVERSIGHT PRESSURE FROM SACE AND OTHER ADVOCATES, TVA MADE A SIGNIFICANT ABOUT-FACE ON ENERGY EFFICIENCY IN 2023. FROM PUBLIC PRESSURE IN THE MEDIA TO CONGRESSIONAL OVERSIGHT CITING OUR REPORTS, TVA FELT THE PRESSURE AND REACTED BY BRINGING BACK ENERGY EFFICIENCY PROGRAMS AND RAMPING UP SPENDING. IT HAS SET A GOAL TO MEET MOST OF ITS LOAD GROWTH WITH ENERGY EFFICIENCY, AND IS NOW BUDGETING TO SPEND 1.5 BILLION ON ENERGY EFFICIENCY OVER THE NEXT FOUR FISCAL YEARS. TVAS NEXT IRP WILL BE RELEASED IN 2024. WHILE WE DO NOT KNOW DETAILS OF ENERGY EFFICIENCY ASSUMPTIONS, TVA HAS AGAIN USED THE EE AS A RESOURCE METHOD TO EVALUATE ENERGY EFFICIENCY IN THIS UPCOMING IRP. THIS SUCCESS WOULD NOT HAVE BEEN ACHIEVED IF IT WERE NOT FOR MANY YEARS OF ADVOCACY FROM SACE.</Desc>
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      <OtherExpensesGrp>
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        <FundraisingAmt>0</FundraisingAmt>
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        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 3, PART X</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS BEEN CLASSIFIED AS AN OTHER-THAN-PRIVATE FOUNDATION AND IS TAX-EXEMPT UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE. THE ORGANIZATION IS SUBJECT TO A TAX ON INCOME FROM ANY UNRELATED BUSINESS. THE ORGANIZATION HAS ADOPTED THE RECOGNITION REQUIREMENTS FOR UNCERTAIN INCOME TAX POSITIONS AS REQUIRED BY GENERALLY ACCEPTED ACCOUNTING PRINCIPLES, WITH NO CUMULATIVE EFFECT ADJUSTMENT REQUIRED. INCOME TAX BENEFITS ARE RECOGNIZED FOR INCOME TAX POSITIONS TAKEN OR EXPECTED TO BE TAKEN IN A TAX RETURN, ONLY WHEN IT IS DETERMINED THAT THE INCOME TAX POSITION WILL MORE-LIKELY-THAN-NOT BE SUSTAINED UPON EXAMINATION BY TAXING AUTHORITIES. THE ORGANIZATION HAS ANALYZED TAX POSITIONS TAKEN FOR FILING WITH THE INTERNAL REVENUE SERVICE AND ALL STATE JURISDICTIONS WHERE IT OPERATES. THE ORGANIZATION BELIEVES THAT INCOME TAX FILING POSITIONS WILL BE SUSTAINED UPON EXAMINATION AND DOES NOT ANTICIPATE ANY ADJUSTMENTS THAT WOULD RESULT IN A MATERIAL ADVERSE AFFECT ON THE ORGANIZATION'S FINANCIAL CONDITION, RESULTS OF OPERATIONS, OR CASH FLOWS. ACCORDINGLY, THE ORGANIZATION HAS NOT RECORDED ANY RESERVES, OR RELATED ACCRUALS, FOR INTEREST AND PENALTIES FOR UNCERTAIN INCOME TAX POSITIONS AT DECEMBER 31, 2023. THE ORGANIZATION IS SUBJECT TO ROUTINE AUDITS BY TAXING JURISDICTIONS; HOWEVER, THERE ARE CURRENTLY NO AUDITS FOR ANY TAX PERIODS IN PROGRESS. THE ORGANIZATION BELIEVES IT IS NO LONGER SUBJECT TO INCOME TAX EXAMINATIONS FOR YEARS PRIOR TO 2020. THE ORGANIZATION'S POLICY IS TO CLASSIFY INCOME TAX RELATED INTEREST AND PENALTIES IN INTEREST EXPENSE AND OTHER EXPENSES, RESPECTIVELY.</ExplanationTxt>
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          <AddressLine1Txt>PO BOX 1842</AddressLine1Txt>
          <CityNm>KNOXVILLE</CityNm>
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      <RecipientTable>
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          <BusinessNameLine1Txt>EVHYBRIDNOIRE</BusinessNameLine1Txt>
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          <CityNm>ATLANTA</CityNm>
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      <RecipientTable>
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          <AddressLine1Txt>625 ROSA PARKS BLVD</AddressLine1Txt>
          <CityNm>NASHVILLE</CityNm>
          <StateAbbreviationCd>TN</StateAbbreviationCd>
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      <RecipientTable>
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          <AddressLine1Txt>500 WESTOVER DR 14973</AddressLine1Txt>
          <CityNm>SANFORD</CityNm>
          <StateAbbreviationCd>NC</StateAbbreviationCd>
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      <SubstantiationRequiredInd>false</SubstantiationRequiredInd>
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            <BusinessNameLine1Txt>TURBO ARROW AVIATION</BusinessNameLine1Txt>
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        <ExplanationTxt>IN FEBRUARY 2022, SOUTHERN ALLIANCE FOR CLEAN ENERGY (SACE) ENTERED A ONE YEAR AGREEMENT WITH TURBO ARROW AVIATION, AN LLC WHOSE MEMBERS INCLUDE SACE'S EXECUTIVE DIRECTOR. UNDER THE TERMS OF THE AGREEMENT TURBO ARROW AVIATION RECEIVES PRIORITY LEASE PAYMENTS OF 1,000 FOR EACH MONTH OF 2022 FOR PRIORITY ACCESS TO TRANSPORT STAFF MEMBERS TO MEETINGS RELATED TO SACE'S EXEMPT PURPOSE THROUGHOUT THE SOUTHEAST. FOR ACTUAL FLIGHT TIME SACE COMPENSATES TURBO ARROW AVIATION AT A RATE OF 295 PER HOUR. SACE DID NOT SIGN AN AGREEMENT WITH TURBO AIR AVIATION FOR 2023 SINCE THE AIRCRAFT ENGINE WAS UNDERGOING A REBUILD FOR MOST OF THE YEAR. THERE WAS ONLY FLIGHT TIME IN JANUARY FOR 2023 AT THE HOURLY RATE. AMOUNTS PAID TO TURBO ARROW AVIATION FOR FLIGHTS TOTALED 4,760 AND 28,033 FOR THE YEARS ENDED DECEMBER 31, 2023 AND 2022, RESPECTIVELY.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 2, PART III, LINE 4A</FormAndLineReferenceDesc>
        <ExplanationTxt>CLEAN ENERGY SACE PUBLISHED AN UPDATED VERSION OF OUR SOLAR IN THE SOUTHEAST REPORT IN 2023. WE ALSO PUBLISHED A NEW INSTALLMENT IN 2023 OF TRANSPORTATION ELECTRIFICATION IN THE SOUTHEAST IN PARTNERSHIP WITH ATLAS PUBLIC POLICY TO TRACK AND CONTEXTUALIZE THE SOUTHEASTS EV MARKET AND EXAMINE SIX KEY INDICATORS ACROSS THE REGION. OUR ANNUALLY-PUBLISHED REPORTS TRACK MARKET, UTILITY, AND PUBLIC POLICY TRENDS ACROSS THE REGION IMPACTING THE ADVANCEMENT (OR STALLS IN PROGRESS, WHEN APPROPRIATE) OF CLEAN ENERGY. THROUGH THESE ANNUAL REPORTS, SACE RANKS THE PERFORMANCE OF OUR REGION'S UTILITIES IN COMPARISON WITH THEIR REGIONAL AND NATIONAL PEERS. THESE KEY ANNUAL REPORTS PROVE TO BE IMMENSELY VALUABLE TOOLS WHEN WE APPEAR BEFORE UTILITIES AND REGULATORS, AS WELL AS IN OUR ADVOCACY FOR SMART PUBLIC POLICY. TO HELP ENSURE THAT FEDERAL MONEY IS INVESTED EFFICIENTLY AND EQUITABLY TO SECURE THE BEST OUTCOMES FOR OUR REGIONS COMMUNITIES, PARTICULARLY THE UNDERSERVED AND DISADVANTAGED, SACE HAS CREATED THE ELECTRIFY THE SOUTH COLLABORATIVE. IN 2023, WITH FUNDING FROM A GENEROUS MOVEMENT INFRASTRUCTURE GRANT FROM MOSAIC, WE HOSTED THE INAUGURAL ELECTRIFY THE SOUTH COLLABORATIVE, A TWO-DAY MEETING OF SOUTHEASTERN LOCAL GOVERNMENTS IN SAVANNAH, GEORGIA. THE EVENT, WHICH WAS CO-HOSTED BY THE SOUTHEAST SUSTAINABILITY DIRECTORS NETWORK (SSDN), PROVIDED 53 PARTICIPANTS FROM 36 LOCAL GOVERNMENTS AN OPPORTUNITY TO DISCUSS THE BARRIERS LOCAL GOVERNMENTS FACE PURSUING AND IMPLEMENTING FEDERAL ELECTRIC TRANSPORTATION DOLLARS FROM IRA AND BIL AND WAYS TO OVERCOME THEM. EACH PANEL, SMALL-GROUP DISCUSSION, AND REFLECTIVE EXERCISE WAS DESIGNED TO INFORM PARTICIPANTS, STIMULATE DEEPENING DIALOG, AND INVITE PEER-TO-PEER COLLABORATION.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 2, PART III, LINE 4B</FormAndLineReferenceDesc>
        <ExplanationTxt>CLIMATE SACE PUBLISHED AN UPDATED VERSION OF OUR "TRACKING DECARBONIZATION IN THE SOUTHEAST" REPORT IN 2023. THIS ANNUALLY-PUBLISHED REPORT TRACKS MARKET, UTILITY, AND PUBLIC POLICY TRENDS ACROSS THE REGION IMPACTING THE ADVANCEMENT (OR STALLS IN PROGRESS, WHEN APPROPRIATE) OF CLEAN ENERGY. THROUGH OUR ANNUAL REPORTS, SACE RANKS THE PERFORMANCE OF OUR REGION'S UTILITIES IN COMPARISON WITH THEIR REGIONAL AND NATIONAL PEERS. THESE KEY ANNUAL REPORTS PROVE TO BE IMMENSELY VALUABLE TOOLS WHEN WE APPEAR BEFORE UTILITIES AND REGULATORS, AS WELL AS IN OUR ADVOCACY FOR SMART PUBLIC POLICY. DURING SUMMER OF 2023, SACE LAUNCHED THE CLEAN ENERGY GENERATION, OUR GRASSROOTS ENGAGEMENT CAMPAIGN THAT BRINGS PEOPLE OF ALL AGES TOGETHER TO ADDRESS THE CLIMATE CRISIS AND CREATE A HEALTHY FUTURE WHERE OUR FAMILIES, COMMUNITIES, AND PLANET WILL THRIVE. SINCE THE CLEAN ENERGY GENERATION LAUNCHED ON JUNE 28TH, 2023, WE HAVE HAD OVER 700 MEMBERS SIGN UP TO GET INVOLVED. WE ARE CONTINUING TO RECRUIT NEW MEMBERS THROUGH QUARTERLY WEBINARS AND HELPING OUR EXISTING MEMBERS GET INVOLVED AND STAY UP TO DATE ON CLEAN ENERGY NEWS THROUGH MONTHLY MEMBER CALLS, BLOGS, AND A MONTHLY NEWSLETTER. WE ARE ALSO DEVELOPING TOOLKITS FOR MEMBERS TO USE FOR COMMUNITY OUTREACH ABOUT IMPORTANT DEVELOPMENTS AND OPPORTUNITIES FOR CLEAN ENERGY AND CLIMATE.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 2, PART III, LINE 4C</FormAndLineReferenceDesc>
        <ExplanationTxt>ENERGY EFFICIENCY SACE PUBLISHED AN UPDATED VERSION OF OUR ENERGY EFFICIENCY IN THE SOUTHEAST REPORT IN 2023. THIS ANNUALLY-PUBLISHED REPORT TRACKS MARKET, UTILITY, AND PUBLIC POLICY TRENDS ACROSS THE REGION IMPACTING THE ADVANCEMENT (OR STALLS IN PROGRESS, WHEN APPROPRIATE) OF ENERGY EFFICIENCY. THROUGH OUR ANNUAL REPORTS, SACE RANKS THE PERFORMANCE OF OUR REGION'S UTILITIES IN COMPARISON WITH THEIR REGIONAL AND NATIONAL PEERS. THESE KEY ANNUAL REPORTS PROVE TO BE IMMENSELY VALUABLE TOOLS WHEN WE APPEAR BEFORE UTILITIES AND REGULATORS, AS WELL AS IN OUR ADVOCACY FOR SMART PUBLIC POLICY. FEELING PUBLIC AND OVERSIGHT PRESSURE FROM SACE AND OTHER ADVOCATES, TVA MADE A SIGNIFICANT ABOUT-FACE ON ENERGY EFFICIENCY IN 2023. FROM PUBLIC PRESSURE IN THE MEDIA TO CONGRESSIONAL OVERSIGHT CITING OUR REPORTS, TVA FELT THE PRESSURE AND REACTED BY BRINGING BACK ENERGY EFFICIENCY PROGRAMS AND RAMPING UP SPENDING. IT HAS SET A GOAL TO MEET MOST OF ITS LOAD GROWTH WITH ENERGY EFFICIENCY, AND IS NOW BUDGETING TO SPEND 1.5 BILLION ON ENERGY EFFICIENCY OVER THE NEXT FOUR FISCAL YEARS. TVAS NEXT IRP WILL BE RELEASED IN 2024. WHILE WE DO NOT KNOW DETAILS OF ENERGY EFFICIENCY ASSUMPTIONS, TVA HAS AGAIN USED THE EE AS A RESOURCE METHOD TO EVALUATE ENERGY EFFICIENCY IN THIS UPCOMING IRP. THIS SUCCESS WOULD NOT HAVE BEEN ACHIEVED IF IT WERE NOT FOR MANY YEARS OF ADVOCACY FROM SACE.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 2, PART III, LINE 4D</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOUTHERN ALLIANCE FOR CLEAN ENERGY PROMOTES RESPONSIBLE ENERGY CHOICES TO ENSURE CLEAN, SAFE AND HEALTHY COMMUNITIES THROUGHOUT THE SOUTHEAST.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>YES</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 10B</FormAndLineReferenceDesc>
        <ExplanationTxt>POLICIES FOR BRANCH OFFICES SAME FOR KNOXVILLE OFFICE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS PRESENTED TO THE BOARD AND REVIEWED BEFORE FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>NO EMPLOYEE OF SACE SHALL MAINTAIN AN OUTSIDE BUSINESS OR FINANCIAL INTEREST, OR ENGAGE IN ANY OUTSIDE BUSINESS OR FINANCIAL ACTIVITY, WHICH CONFLICTS WITH THE INTEREST OF THE ORGANIZATION, OR WHICH INTERFERES WITH HIS OR HER ABILITY TO FULLY PERFORM JOB RESPONSIBILITIES. VIOLATION OF THIS POLICY WILL RESULT IN IMMEDIATE DISMISSAL.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>DOCUMENTS ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
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