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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 4, PART XIII</FormAndLineReferenceDesc>
        <ExplanationTxt>PART X - FIN 48 FOOTNOTE. PART III, LINE 1A - TERMS FOR NOT REPORTING ASSETS PER SFAS 116 COLLECTION ITEMS, WHICH WERE ACQUIRED THROUGH DONATIONS BY THE ESTATES OF LUIS MUOZ MARIN AND INES M. MENDOZA DE MUOZ MARIN, AS WELL AS FROM OTHER DONORS, ARE NOT RECOGNIZED AS ASSETS ON THE STATEMENT OF FINANCIAL POSITION. PURCHASE OF COLLECTIONS ITEMS ARE RECORDED AS DECREASE IN NET ASSETS WITHOUT DONOR RESTRICTIONS IN THE YEAR IN WHICH THE ITEMS ARE ACQUIRED OR AS NET ASSETS WITH DONOR RESTRICTIONS IF THE NET ASSETS USED TO PURCHASE THE ITEMS ARE RESTRICTED BY DONORS. PART X - FIN 48 FOOTNOTE. ACCOUNTING PRINCIPLES GENERALLY ACCEPTED IN THE UNITED STATES OF AMERICA REQUIRE FUNDACION'S MANAGMENT TO EVALUATE TAX POSITIONS TAKEN AND RECOGNIZE A TAX LIABILITY OR ASSET IF THE FUNDACION HAS TAKEN AN UNCERTAIN POSITION THAT MORE LIKELY THAN NOT WILL BE SUSTAINED UPON EXAMINATN OF TAX AUTHORITIES. MANAGEMENT EVALUATED THE TAX POSITION TAKEN BY THE FUNDACION AND CONCLUDED THAT THE FUNDACION AS OF JUNE 30, 2023 HAS MAINTAINED ITS TAX EXEMPT STATUS AND THERE ARE NO UNCERETAIN TAX POSITIONS THAT WOULD REQUIRE ADJUSTMENT OR DISCLOSURE TO THE FINANCIAL STATEMENTS. THEREFORE, NO PROVISION OR LIABILITY FOR INCOME TAXES HAS BEEN INCLUDED IN THE FINANCIAL STATEMENTS. PART XIII- SUPPLEMENTAL FINANCIAL INFORMATION THE ARTWORK COLLECTIONS ARE PART OF AN ESSENCIAL EXHIBITION OF THE MUSEUM THAT IS LOCATED INSIDE THE ORGANIZATION'S FACILITIES.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>HELPING TO BUILD PUERTO RICO'S FUTURE BY PRESERVING BOTH THE SOCIAL AND NATURAL HISTORY AND DISSEMINATING THE VALUES, PHILOSOPHY AND IDEAS OF LUIS MUOZ MARN AND PROMOTING THEM IN IDENTIFYING AND SOLVING THE ISLAND'S MOST URGENT PROBLEMS.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THIS FORM IS REVISED BY THE MANAGEMENT OF THE ORGANIZATION. AFTER MANAGEMENT COMMENTS AND APPROVAL, THE RETURN IS PROVIDED TO THE BOARD OF DIRECTORS FOR FINAL REVIEW, APPROVAL AND FILING.</ExplanationTxt>
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