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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>LORETTA DOAN</PersonNm>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Christina Elder</PersonNm>
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      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Penelope Jones</PersonNm>
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        <PersonNm>Vincent Stine</PersonNm>
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        <PersonNm>MOLLY POLEN</PersonNm>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 1a</FormAndLineReferenceDesc>
        <ExplanationTxt>The policy of the Association is not to pay for spousal or companion travel expenses. Two exceptions are made - the Association pays travel expenses for the President's spouse to the Annual Meeting, and may waive incidental, de minimis expenses in certain instances.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 4</FormAndLineReferenceDesc>
        <ExplanationTxt>IN NOVEMBER 2015, A NEW TYPE OF MEMBERSHIP, EXPRESS MEMBERSHIP, WAS ADDED TO THE TYPES LISTED AND DESCRIBED IN AACC'S BYLAWS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>Persons admitted as Members shall a) possess an earned baccalaureate or higher degree in science or medicine or the academic equivalent of the above, and b) be engaged in professional activities commonly associated with the practice of clinical chemistry. Only Members who are in good standing shall have any right, title, or interest in the property and funds of the Association. Only Members may hold Association office or Association board, commission, committee, or task force memberships, and vote in elections of the Association or any of its units. Only Members may represent the Association in professional matters.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Board of Directors consists of the officers of the Association and six (6) members-at-large, which are elected from and by the Members.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>Amendments to the AACC constitution and bylaws may be proposed, in part, by petition signed by at least 10% of all Members in good standing. Upon receipt of a duly proposed amendment or revision, the Association Secretary shall, within 45 days, mail a letter ballot to each Member in good standing. A proposed amendment or revision shall become effective at the time specified, upon receiving two-thirds affirmative vote of all valid ballots cast.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11</FormAndLineReferenceDesc>
        <ExplanationTxt>The Finance Committee has an opportunity to review the form 990 with AACC staff prior to filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>The base salary of the Chief Executive Officer shall be based on market value for the position. The Finance Committee is charged with determining market value for the position based on appropriate data. The data shall consist of review of at least two sources of statistical data on salary for comparable positions and may include input from a compensation consultant. Annual salary shall be based on the base salary plus the option of merit increase. A merit increase shall be based on the degree of achievement of agreed upon goals and a recommendation from the President. The range for a merit increase shall be established each year during the budgeting process. An optional bonus may be awarded based on exceptional performance which is not adequately compensated for by the merit increase and the financial status of AACC. The amount of such a bonus shall be determined based on degree of achievement of agreed upon goals and a recommendation from the President. Other officers or key employees: AACC has a formal salary administration program with salaries based on grades and increases based on formal evaluations. The salary ranges for grades are evaluated by an outside consultant every three years with selected benchmark positions. The last evaluation was conducted in 2013 and the benchmarked positions included the CFO.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>Governing documents: Constitution and Bylaws are posted on AACC.org under About AACC's Governance. Conflict of Interest: AACC addresses conflict of interest for general members under the Ethics Guidelines on AACC.org under About AACC Ethics Guidelines and for BOD members as one of the BOD policies listed under the password protected AACC Leadership section on AACC.org Financial Statements: AACC's Balance Sheet and Statement of Activities are posted on AACC.org as a part of the Annual Report.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, line 11g</FormAndLineReferenceDesc>
        <ExplanationTxt>Outside Consultant: Program service expenses 1,359,412. Management and general expenses 310,897. Fundraising expenses 0. Total expenses 1,670,309. Offsite Managed Hosting: Program service expenses 105,699. Management and general expenses 188,333. Fundraising expenses 0. Total expenses 294,032. Editorial/Writer Fees: Program service expenses 119,203. Management and general expenses 0. Fundraising expenses 0. Total expenses 119,203. Temporary Help: Program service expenses 74,348. Management and general expenses 34,400. Fundraising expenses 0. Total expenses 108,748. Commissions &amp; Discounts: Program service expenses 966,858. Management and general expenses 0. Fundraising expenses 0. Total expenses 966,858.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2c</FormAndLineReferenceDesc>
        <ExplanationTxt>The audit oversight process has remained unchanged.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>