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        <FormAndLineReferenceDesc>SUPPLEMENTAL INFORMATION</FormAndLineReferenceDesc>
        <ExplanationTxt>SCHEDULE A FOR 2023 WAS ADJUSTED TO ACCOUNT FOR THE PRIOR PERIOD ADJUSTMENT REPORTED ON PART XI LINE 8. THE ADJUSTMENT WAS NECESSARY AS THE 2023 AUDIT WAS COMPLETED AFTER THE FORM 990 WAS COMPLETED.</ExplanationTxt>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PAGE 3, PART X</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ISPMB HAS ADOPTED FASB ACCOUNTING STANDARDS CODIFICATION TOPIC 740, ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES AND DISCLOSURE AMENDMENTS FOR NONPUBLIC ENTITIES, (ASC 740). THIS STANDARD CLARIFIES THE RECOGNITION THRESHOLD AND MEASUREMENT REQUIREMENTS FOR INCOME TAX POSITIONS TAKEN OR EXPECTED TO BE TAKEN IN INCOME TAX RETURNS. THIS INCLUDES POSITIONS THAT THE ENTITY IS EXEMPT FROM INCOME TAXES OR NOT SUBJECT TO INCOME TAXES ON UNRELATED BUSINESS INCOME. UNDER THE STANDARD, THE ISPMB RECOGNIZES TAX BENEFITS FROM UNCERTAIN TAX POSITIONS ONLY IF IT IS MORE LIKELY THAN NOT THAT THE TAX POSITIONS WILL BE SUSTAINED ON EXAMINATION BY TAXING AUTHORITIES. THE ISPMB HAS IDENTIFIED NO SIGNIFICANT INCOME TAX UNCERTAINTIES.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PAGE 2, PART III, LINE 4A</FormAndLineReferenceDesc>
        <ExplanationTxt>ISPMB HAS COLLECTED MORE THAN TWENTY YEARS OF DATA OBSERVING BEHAVIORS AND HERD GROWTH OF FOUR HERDS OF WILD HORSES IT MANAGED. WITH THIS INFORMATION, ISPMB HAS CREATED A "MODEL" FOR MANAGING AMERICA'S WILD HORSES. ISPMB'S INTENT IS TO TRANSFORM HOW WILD HORSES AND BURROS ARE MANAGED ON PUBLIC LANDS. IN THE PAST, ISPMB HAS SHARED MANY PROGRAMS WITH THE BUREAU OF LAND MANAGEMENT AND THE FOREST SERVICE, THE AGENCIES WHO MANAGE WILD HORSES AND BURROS. IT IS OUR GOAL TO SHARE THIS NEW PROGRAM WITH THE AGENCIES. CURRENTLY, ISPMB MANAGES ONE ENDANGERED WILD HERD KNOWN AS THE GILA HERD AND CONTINUES TO OBSERVE AND COLLECT DATA ON THIS HERD WHICH REMAINS IN CONSERVATION UNDER THEIR CARE. ISPMB OPERATES A RESCUE PROGRAM FOR WILD HORSES AND CONTINUES EFFORTS TO CREATE ITS INTERNATIONAL WILD HORSE AND BURRO HERITAGE CENTER. ISPMB RECEIVED 87,222 IN DONATED SERVICES WHICH INCLUDES 3,800 IN SOCIAL MEDIA MONITORING AND 83,422 IN LEGAL SERVICES.</ExplanationTxt>
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        <ExplanationTxt>THE ORGANIZATION'S BYLAWS WERE CHANGED TO REFLECT WITH ITS UPDATED MISSION WHICH SHOWN ON SCHEDULE O. THE BYLAWS WERE ALSO AMENDED TO CHANGE THE VOTING REQUIREMENT FROM THREE-QUARTERS (3/4) VOTE APPROVAL TO A TWO-THIRDS (2/3).</ExplanationTxt>
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        <ExplanationTxt>PER THE BYLAWS, ANY INDIVIDUAL, CORPORATION, PARTNERSHIP, OR ANY OTHER LEGAL ENTITY MAY BECOME MEMBERS OF THIS ORGANIZATION. CURRENT MEMBERS ARE CONSIDERED DONORS/CONTRIBUTORS TO THE EFFORTS AND MISSION OF ISPMB. CURRENT MEMBERS ARE NOT ELIGIBLE TO VOTE ON DECISIONS MADE BY THE BOARD OF ISPMB.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PRESIDENT REVIEWS THE FORM 990 IN DETAIL PRIOR TO FILING. A COPY IS PROVIDED TO ALL BOARD MEMBERS.</ExplanationTxt>
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        <ExplanationTxt>OHIO, MINNESOTA, MASSACHUSETTS, MARYLAND, VIRGINIA, KENTUCKY, PENNSYLVANIA, MICHIGAN, FLORIDA, TENNESSEE, MAINE, CONNECTICUT, WASHINGTON, NEW JERSEY, ARKANSAS, NEW MEXICO, WISCONSIN, NORTH DAKOTA, WEST VIRGINIA, ALABAMA, DIST OF COLUMBIA, KANSAS, RHODE ISLAND, ALASKA</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS, POLICIES, AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
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</Return>