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  <element id="nsc_DebtMaturingTwoThousandNinetySevenToTwentyOneThousandElevenMember" name="DebtMaturingTwoThousandNinetySevenToTwentyOneThousandElevenMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="nsc_DefinedBenefitPlanAssumedHealthCareCostTrendRate" name="DefinedBenefitPlanAssumedHealthCareCostTrendRate" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
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</schema>