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        <Explanation>In its library, the School exhibits an historical map dating back to 1755, which shows the 13 colonies and lands used as "land grants" by the revolutionary governments as a method of obtaining military services. The map is an educational tool of the school in providing a quality education to its students.</Explanation>
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        <ReturnReference>Description of Uncertain Tax Positions Under FIN 48:</ReturnReference>
        <Explanation>Effective July 1, 2009, the School adopted the provision pertaining to uncertain tax positions and has determined that there are no material uncertain tax positions that require recognition or disclosure in the financial statements.</Explanation>
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      <PubViaBroadcastMediaExpln>Allen-Stevenson School is one of many schools who are listed in the Independent School Admissions Association of Greater New York advertisement that states non-discriminatory policy towards student acceptances. Additionally, listed on all marketing materials and on our website.</PubViaBroadcastMediaExpln>
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        <TypeOfGrant>Financial Aid/ Scholarships</TypeOfGrant>
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        <TypeOfGrant>Tuition Assistance</TypeOfGrant>
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      <Form990ScheduleIPartIV>
        <Identifier>Procedure for Monitoring Grants in the U.S.:</Identifier>
        <ReturnReference>Part I, Line 2:</ReturnReference>
        <Explanation>Schedule I, Part I, Line 2: The school grants financial aid scholarships to those families who cannot afford the full tuition. The process for determining the scholarship award is as follows: The Business Manager sets the budget for the total amount of scholarships to be awarded. The Treasurer's committee reviews the budgets prior to Board Approval. In October, the personal financial aid request forms are sent to the parents at their request,and the personal financial statement (PFS) forms are e-mailed to all the requesting families. Parents are requested to complete the forms and mail them back to the school and complete the on- line application for financial aid (SSSFA) together with their prior years financial information and an amount they can pay towards tuition. Based on the PFS forms submitted by the families, SSSFA will calculate the amount each family can afford to contribute towards tuition. SSSFA will then send these calculations to the school. In December, the Director of Admissions will review the documents provided by the families and SSSFA, and create a spreadsheet of potential scholarships to be granted to each student. This spreadsheet is then reviewed by the Financial Aid Committee consisting of the Head Master, Director of Admissions, and four board members. The Business Manager reviews the awards prior to the award letters going out to the families. Changes may occur if there seem to be inconsistencies in the financial data submitted. (as all applicants must submit their completed 1040 tax returns and business returns if applicable). Once approved by the committee, a letter of approval is mailed to the family that must be accepted by the parent.</Explanation>
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          <BusinessNameLine1>C Harris Stein</BusinessNameLine1>
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          <BusinessNameLine1>susan L etess</BusinessNameLine1>
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          <BusinessNameLine1>Neal Kamsler</BusinessNameLine1>
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      <Form990ScheduleJPartIII>
        <ReturnReference>Part I, Line 1a</ReturnReference>
        <Explanation>as headmaster of allen-stevenson school, the school reimburses Mr. David Trower the cost of his dues for his club membership to the union club as per his contract. This is a taxable benefit.</Explanation>
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    <IRS990ScheduleM documentId="RetDoc1042900001">
      <SecuritiesPubliclyTraded>
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        <NumberOfContributions>9</NumberOfContributions>
        <NoncashContribsRptdF990>126886</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>Selling price</MethodOfDeterminingRevenues>
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      <AnyPropertyThatMustBeHeld>0</AnyPropertyThatMustBeHeld>
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      <Form990ScheduleMPartII>
        <Identifier>Method for Determining Number of Contributors:</Identifier>
        <ReturnReference>Part I, Column (b):</ReturnReference>
        <Explanation>THE NUMBER OF CONTRIBUTORS REPRESENTS THE NUMBER OF ITEMS RECEIVED.</Explanation>
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    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Section B, line 11</Identifier>
        <Explanation>Management reviews the 990 to obtain an understanding of the reporting requirements and to ensure it is accurate and complete. Subsequently, a copy of the draft 990 is provided to the audit committee for their review. The audit committee will meet with management to discuss the 990 and resolve any questions that may arise. The draft 990 will then be distributed to the Board for review and approval. Upon request from the Board the 990 will be filed. The process occurs annually and was last undertaken during the 2009 fiscal year.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Section B, line 12c</Identifier>
        <Explanation>Board members, officers, key employees and all other employees sign a conflict of interest policy statement annually which are reviewed by management and the Board of Trustees Audit Committee. If a conflict appears to exist; management and the Board of Trustees Audit Committee will meet with the individual to obtain all the facts. If a conflict is identified, the individual to whom it pertains must refrain from participating in the decision making concerning the matter that gave rise to the conflict. Additionally, an employee who recommends a vendor to the school must disclose to the business manager and the head of school whether he or she has a relationship with that vendor. If approved as appropriate, that vendor must provide the school with a minimum of three professional references. Additionally, there will be a bidding process where two additional outside independent vendors will be asked to bid on the job or service as well.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Section B, line 15</Identifier>
        <Explanation>The Business Manager obtains data from NAIS, NYC Guild Schools &amp; NYSAIS that shows detail salary figures for various positions of 14 schools. The three School Groups are used for comparison of current salaries to Allen-Stevenson's key employees such as Head of School, Upper School Head, Middle School Head, Business Manager, Director of Admissions, Facilities Director &amp; Director of Development. The Compensation Committee, made up of seven Board Members, reviews the Head's recommendaton of salary. The committee determines the Head Master's salary and comments on all the other salaries for fairness and appropriateness. THIS PROCESS WAS LAST COMPLETED FOR FISCAL YEAR 2010.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Section C, line 19</Identifier>
        <Explanation>The school makes its form 990 as well as the financial statements and faculty and staff handbooks available upon request. The financial statement is submitted to MSRB and is electronically posted as this is a covenant of the NYC IDA Bond Documents. Financials are required to be available to IDA bond purchasers and the letter of credit bank providing the bonds credit enhancement.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>FORM 990, PART XI, LINE 2C</Identifier>
        <Explanation>THE PROCESS HAS NOT CHANGED FROM THE PRIOR YEAR.The school makes its form 990 as well as the financial statements and faculty and staff handbooks available upon request. The financial statement is submitted to MSRB and is electronically posted as this is a covenant of the NYC IDA Bond Documents. Financials are required to be available to IDA bond purchasers and the letter of credit bank providing the bonds credit enhancement.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
  </ReturnData>
</Return>