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        <NamePerson>Norman E Vinn DO</NamePerson>
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        <ProgramServices>4239238</ProgramServices>
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        <CurrentTaxYearMinus1Year>2079970</CurrentTaxYearMinus1Year>
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        <ReturnReference>Part I, Line 1a</ReturnReference>
        <Explanation>1) First class or charter travel The Association paid and reimbursed the cost of first class airfare for the following positions and their spouses: President, President Elect, Immediate Past President and Executive Director. 2) Travel for companions The AOA paid/reimbursed the spousal travel expenses for the following positions: President, President-elect, Immediate Past President and Executive Director. Additionally, the AOA paid/reimbursed spousal travel for other Trustees only when they traveled to meetings to fulfill an obligation of the AOA President.</Explanation>
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      <Form990ScheduleJPartIII>
        <ReturnReference>Part I, Line 4b</ReturnReference>
        <Explanation>Ann Wittner - $6,885</Explanation>
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      <Form990ScheduleJPartIII>
        <Identifier>Supplemental Information</Identifier>
        <ReturnReference>Part III</ReturnReference>
        <Explanation>In addition, on June 1, 2005, John Crosby entered into a deferred compensation agreement with the AOA. John Crosby is entitled to a maximum benefit of $500,000 paid in five equal annual installments. The deferred compensation agreement set out in the June 1, 2005 agreement was superseded by a subsquent amended and restated employment agreement.</Explanation>
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      <Form990ScheduleLPartIV>
        <NameOfInterestedPerson>
          <NamePerson>Boyd R Buser DO</NamePerson>
        </NameOfInterestedPerson>
        <Relationship>Trustee</Relationship>
        <AmountOfTransaction>12000</AmountOfTransaction>
        <DescriptionOfTransaction>Consulting Services</DescriptionOfTransaction>
        <SharingOfRevenues>0</SharingOfRevenues>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Section B, line 11</Identifier>
        <Explanation>The 990 tax return is prepared by our outside tax service with data provided by client. The Board of Trustees delegates the responsibility of reviewing and approving the filings to the Audit Committee before submission. The CEO then conducts a review and the Controller conducts an analysis before final approval and submission to the IRS.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>Form 990, Part VI, Section B, line 12c</ReturnReference>
        <Explanation>Each vendor form and capital request form is accompanied by a conflict of interest statement. Before such requests are approved the requesting officer, director, trustee, or key employee must disclose any potential conflict of interest. Those key personnel with conflicts are advised to recuse themselves from participating in decision making related to the conflict.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>Form 990, Part VI, Section B, line 15</ReturnReference>
        <Explanation>The compensation (salaries, bonuses, benefits) for the Executive Director, officers and key employees are set based upon information provided by an independent salary consultant, who furnishes information drawn from surveys of information (including form 990s) from comparable healthcare associations and other employers in the relevant geographic markets. A committee of the Board of Trustees - the Committee on Administrative Personnel (COAP) - is provided with the information for the Executive Director's compensation and makes recommendations for final approval by the entire Board of Trustees. Compensation for the President, President-elect and Immediate Past President are based upon information regarding compensation for physicians for one year and approved by a disinterested majority of the Committee on Administrative Personnel and Board of Trustees. The Committee on Administrative Personnel also reviews and makes recommendations to the Board of Trustees regarding aggregate compensation for the other officers and key employees.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>Form 990, Part VI, Section C, line 19</ReturnReference>
        <Explanation>The AOA's governing documents (constitution and bylaws and code of ethics) are published on-line and available at the AOA's website - https://www.do-online.org/index.cfm?PageID=aoa_profmain&amp;au=S&amp;SubPageID=aoa_ The Association's conflict of interest policy and financial statements are available to the public upon request.</Explanation>
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      <GeneralExplanation>
        <Identifier>Changes in Net Assets or Fund Balances:</Identifier>
        <ReturnReference>Form 990, Part XI, line 5:</ReturnReference>
        <Explanation>Net unrealized gains on investments: 3,484,181.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Explanation>Ann Wittner is the beneficary of a trust (more commonly known as a Rabbi Trust) in which she is entitled to receive the annual income from the trust until her death. As of May 31, 2011, the assets in the trust were $185,823. At her death, the trust assets will revert back to AOA.</Explanation>
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          <AddressLine1>142 East Ontario Street</AddressLine1>
          <City>Chicago</City>
          <State>IL</State>
          <ZIPCode>60611</ZIPCode>
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        <EIN>364340931</EIN>
        <PrimaryActivities>To improve the effectiveness of DO's through technology</PrimaryActivities>
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        <PrimaryActivities>To support research for the advancement of the osteopathic profession</PrimaryActivities>
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