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      <SupplementalInformationDetail>
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      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
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        <ExplanationTxt>State aviation officers are members with voting privileges. There is an associate program called Business Partners of NASAO whose members receive benefits but cannot vote.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>The form is distributed to board members and management for review and approval prior to filing with the IRS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
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          <CityNm>McLean</CityNm>
          <StateAbbreviationCd>VA</StateAbbreviationCd>
          <ZIPCd>221013904</ZIPCd>
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        <PrimaryActivitiesTxt>To enhance the public good through increasingly safe air transport system.</PrimaryActivitiesTxt>
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