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    <link:label id="lab_us-gaap_SellingGeneralAndAdministrativeExpense_5885F9AE00B0214BFB76B5D0118429E6_label_en-US" xlink:label="lab_us-gaap_SellingGeneralAndAdministrativeExpense_5885F9AE00B0214BFB76B5D0118429E6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Selling, General and Administrative Expense</link:label>
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    <link:label id="lab_us-gaap_OperatingIncomeLoss_C7AADCE194CCC29CAE19B5D011844ED9_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss_C7AADCE194CCC29CAE19B5D011844ED9" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Income from operations</link:label>
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    <link:label id="lab_us-gaap_CommonStockDividendsPerShareDeclared_318F09F0938C5FF3DB76B5D011851151_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockDividendsPerShareDeclared_318F09F0938C5FF3DB76B5D011851151" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends declared per common share</link:label>
    <link:label id="lab_us-gaap_CommonStockDividendsPerShareDeclared_318F09F0938C5FF3DB76B5D011851151_label_en-US" xlink:label="lab_us-gaap_CommonStockDividendsPerShareDeclared_318F09F0938C5FF3DB76B5D011851151" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Dividends, Per Share, Declared</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_3B3B6199F13A2EE00C88B5D01185C104" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_3B3B6199F13A2EE00C88B5D01185C104" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_BAB4122303DDF35E58E9B5D01186F5E4_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_BAB4122303DDF35E58E9B5D01186F5E4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign currency translation adjustment, net of tax of $70, $0, $30, and $0, respectively</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_BAB4122303DDF35E58E9B5D01186F5E4_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_BAB4122303DDF35E58E9B5D01186F5E4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_BAB4122303DDF35E58E9B5D01186F5E4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_BAB4122303DDF35E58E9B5D01186F5E4" xlink:to="lab_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_BAB4122303DDF35E58E9B5D01186F5E4" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax_5DB6524EBB8F43803C41B5D011866436_negatedLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax_5DB6524EBB8F43803C41B5D011866436" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Reclassification adjustments to cash flow hedges included in net income, net of tax of $553, $553, $1,115, and $1,105, respectively</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax_5DB6524EBB8F43803C41B5D011866436_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax_5DB6524EBB8F43803C41B5D011866436" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax</link:label>
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    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_F510C9ED2BB911A6753EB5D01186FF16_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_F510C9ED2BB911A6753EB5D01186FF16" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortization of pension and postretirement plans actuarial loss and prior service cost, net of tax of $688, $4,221, $1,472, and $5,421, respectively</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_F510C9ED2BB911A6753EB5D01186FF16_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_F510C9ED2BB911A6753EB5D01186FF16" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Net of Tax</link:label>
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    <link:label id="lab_pkg_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossAndNetPriorServiceCostsArisingDuringPeriodNetOfTax_C4D54702AA669BCCEB96B5D011863AB9_terseLabel_en-US" xlink:label="lab_pkg_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossAndNetPriorServiceCostsArisingDuringPeriodNetOfTax_C4D54702AA669BCCEB96B5D011863AB9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes in unfunded employee benefit obligation, net of tax of $0, $5,370, $0, and $5,370, respectively</link:label>
    <link:label id="lab_pkg_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossAndNetPriorServiceCostsArisingDuringPeriodNetOfTax_C4D54702AA669BCCEB96B5D011863AB9_label_en-US" xlink:label="lab_pkg_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossAndNetPriorServiceCostsArisingDuringPeriodNetOfTax_C4D54702AA669BCCEB96B5D011863AB9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss And Net Prior Service Costs Arising During Period Net Of Tax</link:label>
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    <link:label id="lab_us-gaap_AssetsAbstract_B8613679CC159F7868C1AD57C479C53A_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsAbstract_B8613679CC159F7868C1AD57C479C53A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ASSETS</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MachineryAndEquipmentMember_0A4B72DEAE7202FA821183C7F0B9FB54" xlink:to="lab_us-gaap_MachineryAndEquipmentMember_0A4B72DEAE7202FA821183C7F0B9FB54" xlink:type="arc" />
    <link:label id="lab_us-gaap_ConstructionInProgressMember_E0653D59C54E16EBE46483C7F0B97448_terseLabel_en-US" xlink:label="lab_us-gaap_ConstructionInProgressMember_E0653D59C54E16EBE46483C7F0B97448" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Construction in Progress</link:label>
    <link:label id="lab_us-gaap_ConstructionInProgressMember_E0653D59C54E16EBE46483C7F0B97448_label_en-US" xlink:label="lab_us-gaap_ConstructionInProgressMember_E0653D59C54E16EBE46483C7F0B97448" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Construction in Progress [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ConstructionInProgressMember" xlink:label="loc_us-gaap_ConstructionInProgressMember_E0653D59C54E16EBE46483C7F0B97448" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConstructionInProgressMember_E0653D59C54E16EBE46483C7F0B97448" xlink:to="lab_us-gaap_ConstructionInProgressMember_E0653D59C54E16EBE46483C7F0B97448" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherCapitalizedPropertyPlantAndEquipmentMember_1E15079C62ADE73FFC6E83C7F0B9BF1C_terseLabel_en-US" xlink:label="lab_us-gaap_OtherCapitalizedPropertyPlantAndEquipmentMember_1E15079C62ADE73FFC6E83C7F0B9BF1C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_us-gaap_OtherCapitalizedPropertyPlantAndEquipmentMember_1E15079C62ADE73FFC6E83C7F0B9BF1C_label_en-US" xlink:label="lab_us-gaap_OtherCapitalizedPropertyPlantAndEquipmentMember_1E15079C62ADE73FFC6E83C7F0B9BF1C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Capitalized Property Plant and Equipment [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherCapitalizedPropertyPlantAndEquipmentMember" xlink:label="loc_us-gaap_OtherCapitalizedPropertyPlantAndEquipmentMember_1E15079C62ADE73FFC6E83C7F0B9BF1C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherCapitalizedPropertyPlantAndEquipmentMember_1E15079C62ADE73FFC6E83C7F0B9BF1C" xlink:to="lab_us-gaap_OtherCapitalizedPropertyPlantAndEquipmentMember_1E15079C62ADE73FFC6E83C7F0B9BF1C" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentLineItems_17B524330A0EA995AFC783C7F0B993A3_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentLineItems_17B524330A0EA995AFC783C7F0B993A3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, Plant, and Equipment [Line Items]</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentLineItems_17B524330A0EA995AFC783C7F0B993A3_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentLineItems_17B524330A0EA995AFC783C7F0B993A3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_17B524330A0EA995AFC783C7F0B993A3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_17B524330A0EA995AFC783C7F0B993A3" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentLineItems_17B524330A0EA995AFC783C7F0B993A3" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentGross_3E9BDF3429011E11087B83C7F0B9563D_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentGross_3E9BDF3429011E11087B83C7F0B9563D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant, and equipment, at cost</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentGross_3E9BDF3429011E11087B83C7F0B9563D_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentGross_3E9BDF3429011E11087B83C7F0B9563D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Gross</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_3E9BDF3429011E11087B83C7F0B9563D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_3E9BDF3429011E11087B83C7F0B9563D" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentGross_3E9BDF3429011E11087B83C7F0B9563D" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_6F59C18BA532077CE1B383C7F0B93BFF_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_6F59C18BA532077CE1B383C7F0B93BFF" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Less: accumulated depreciation</link:label>
    <link:label id="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_6F59C18BA532077CE1B383C7F0B93BFF_label_en-US" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_6F59C18BA532077CE1B383C7F0B93BFF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_6F59C18BA532077CE1B383C7F0B93BFF" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_F088055DEA29110EBA3A83C7F0B9F1FE_totalLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_F088055DEA29110EBA3A83C7F0B9F1FE" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Property, plant, and equipment, net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_F088055DEA29110EBA3A83C7F0B9F1FE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_F088055DEA29110EBA3A83C7F0B9F1FE" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNet_F088055DEA29110EBA3A83C7F0B9F1FE" xlink:type="arc" />
    <link:label id="lab_us-gaap_DepreciationAbstract_95AB72907FF928AB099183C7F0B9AFC6_terseLabel_en-US" xlink:label="lab_us-gaap_DepreciationAbstract_95AB72907FF928AB099183C7F0B9AFC6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation [Abstract]</link:label>
    <link:label id="lab_us-gaap_DepreciationAbstract_95AB72907FF928AB099183C7F0B9AFC6_label_en-US" xlink:label="lab_us-gaap_DepreciationAbstract_95AB72907FF928AB099183C7F0B9AFC6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DepreciationAbstract" xlink:label="loc_us-gaap_DepreciationAbstract_95AB72907FF928AB099183C7F0B9AFC6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DepreciationAbstract_95AB72907FF928AB099183C7F0B9AFC6" xlink:to="lab_us-gaap_DepreciationAbstract_95AB72907FF928AB099183C7F0B9AFC6" xlink:type="arc" />
    <link:label id="lab_us-gaap_Depreciation_588C9B2620743862B2BD83C7F0B9EDAE_terseLabel_en-US" xlink:label="lab_us-gaap_Depreciation_588C9B2620743862B2BD83C7F0B9EDAE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation expense</link:label>
    <link:label id="lab_us-gaap_Depreciation_588C9B2620743862B2BD83C7F0B9EDAE_label_en-US" xlink:label="lab_us-gaap_Depreciation_588C9B2620743862B2BD83C7F0B9EDAE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaap_Depreciation_588C9B2620743862B2BD83C7F0B9EDAE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Depreciation_588C9B2620743862B2BD83C7F0B9EDAE" xlink:to="lab_us-gaap_Depreciation_588C9B2620743862B2BD83C7F0B9EDAE" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_67E58C68F8A1DCCDE8FE92AAF7DA3758_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_67E58C68F8A1DCCDE8FE92AAF7DA3758" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash Flows from Operating Activities:</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_67E58C68F8A1DCCDE8FE92AAF7DA3758_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_67E58C68F8A1DCCDE8FE92AAF7DA3758" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_67E58C68F8A1DCCDE8FE92AAF7DA3758" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_67E58C68F8A1DCCDE8FE92AAF7DA3758" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_67E58C68F8A1DCCDE8FE92AAF7DA3758" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_C9E5858238804BA0467492AAF7DA57B9_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_C9E5858238804BA0467492AAF7DA57B9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments to reconcile net income to net cash provided by operating activities:</link:label>
    <link:label id="lab_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_C9E5858238804BA0467492AAF7DA57B9_label_en-US" xlink:label="lab_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_C9E5858238804BA0467492AAF7DA57B9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_C9E5858238804BA0467492AAF7DA57B9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_C9E5858238804BA0467492AAF7DA57B9" xlink:to="lab_us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_C9E5858238804BA0467492AAF7DA57B9" xlink:type="arc" />
    <link:label id="lab_us-gaap_DepreciationDepletionAndAmortization_1F1A3AD58BA6EF058D7492AAF7DA255A_terseLabel_en-US" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization_1F1A3AD58BA6EF058D7492AAF7DA255A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation, depletion, and amortization of intangibles and deferred financing costs</link:label>
    <link:label id="lab_us-gaap_DepreciationDepletionAndAmortization_1F1A3AD58BA6EF058D7492AAF7DA255A_label_en-US" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization_1F1A3AD58BA6EF058D7492AAF7DA255A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation, Depletion and Amortization</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_1F1A3AD58BA6EF058D7492AAF7DA255A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DepreciationDepletionAndAmortization_1F1A3AD58BA6EF058D7492AAF7DA255A" xlink:to="lab_us-gaap_DepreciationDepletionAndAmortization_1F1A3AD58BA6EF058D7492AAF7DA255A" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensation_C588BC97822D11034E8D92AAF7DA61C4_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_C588BC97822D11034E8D92AAF7DA61C4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based compensation expense</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensation_C588BC97822D11034E8D92AAF7DA61C4_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_C588BC97822D11034E8D92AAF7DA61C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_C588BC97822D11034E8D92AAF7DA61C4" xlink:type="locator" />
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    <link:label id="lab_pkg_AlternativeFuelMixtureCreditChange_2DD2AD8050FA8912CEC892AAF7DAE138_negatedLabel_en-US" xlink:label="lab_pkg_AlternativeFuelMixtureCreditChange_2DD2AD8050FA8912CEC892AAF7DAE138" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Alternative energy tax credits</link:label>
    <link:label id="lab_pkg_AlternativeFuelMixtureCreditChange_2DD2AD8050FA8912CEC892AAF7DAE138_label_en-US" xlink:label="lab_pkg_AlternativeFuelMixtureCreditChange_2DD2AD8050FA8912CEC892AAF7DAE138" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Alternative Fuel Mixture Credit Change</link:label>
    <link:label id="lab_pkg_AlternativeFuelMixtureCreditChange_2DD2AD8050FA8912CEC892AAF7DAE138_documentation_en-US" xlink:label="lab_pkg_AlternativeFuelMixtureCreditChange_2DD2AD8050FA8912CEC892AAF7DAE138" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the net change in the amount of alternative fuel mixture credits due the entity for the production and use of alternative fuels in the entity's trade or business.</link:label>
    <link:loc xlink:href="pkg-20140630.xsd#pkg_AlternativeFuelMixtureCreditChange" xlink:label="loc_pkg_AlternativeFuelMixtureCreditChange_2DD2AD8050FA8912CEC892AAF7DAE138" xlink:type="locator" />
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    <link:label id="lab_pkg_PensionAndPostretirementBenefitsContributionsExpenseNet_7EE723F66286456B0CF592AAF7DA165A_negatedLabel_en-US" xlink:label="lab_pkg_PensionAndPostretirementBenefitsContributionsExpenseNet_7EE723F66286456B0CF592AAF7DA165A" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Pension and postretirement benefits expense, net of contributions</link:label>
    <link:label id="lab_pkg_PensionAndPostretirementBenefitsContributionsExpenseNet_7EE723F66286456B0CF592AAF7DA165A_label_en-US" xlink:label="lab_pkg_PensionAndPostretirementBenefitsContributionsExpenseNet_7EE723F66286456B0CF592AAF7DA165A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pension And Postretirement Benefits Contributions Expense Net</link:label>
    <link:label id="lab_pkg_PensionAndPostretirementBenefitsContributionsExpenseNet_7EE723F66286456B0CF592AAF7DA165A_documentation_en-US" xlink:label="lab_pkg_PensionAndPostretirementBenefitsContributionsExpenseNet_7EE723F66286456B0CF592AAF7DA165A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of pension and postretirement benefit costs recognized during the period, less the amount of contributions made by the entity to fund its plans. For defined benefit plans, pension and postretirement expense includes the following components: service cost, interest cost, expected return on plan assets, gain or loss on plan assets, prior service cost or credit, transition asset or obligation, and gain or loss due to settlements or curtailments.</link:label>
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    <link:label id="lab_us-gaap_OtherOperatingActivitiesCashFlowStatement_75906D9273696E23BA7692AAF7DAEB94_terseLabel_en-US" xlink:label="lab_us-gaap_OtherOperatingActivitiesCashFlowStatement_75906D9273696E23BA7692AAF7DAEB94" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other, net</link:label>
    <link:label id="lab_us-gaap_OtherOperatingActivitiesCashFlowStatement_75906D9273696E23BA7692AAF7DAEB94_label_en-US" xlink:label="lab_us-gaap_OtherOperatingActivitiesCashFlowStatement_75906D9273696E23BA7692AAF7DAEB94" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Operating Activities, Cash Flow Statement</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_75906D9273696E23BA7692AAF7DAEB94" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_75906D9273696E23BA7692AAF7DAEB94" xlink:to="lab_us-gaap_OtherOperatingActivitiesCashFlowStatement_75906D9273696E23BA7692AAF7DAEB94" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_353EE3FC4A76CD701C8B92AAF7DABEE7_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_353EE3FC4A76CD701C8B92AAF7DABEE7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes in operating assets and liabilities:</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_353EE3FC4A76CD701C8B92AAF7DABEE7_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_353EE3FC4A76CD701C8B92AAF7DABEE7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Operating Capital [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_353EE3FC4A76CD701C8B92AAF7DABEE7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_353EE3FC4A76CD701C8B92AAF7DABEE7" xlink:to="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_353EE3FC4A76CD701C8B92AAF7DABEE7" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_0A11AABAA80EBB35DB0792AAF7DA53B6_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_0A11AABAA80EBB35DB0792AAF7DA53B6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">(Increase) decrease in assets -</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_0A11AABAA80EBB35DB0792AAF7DA53B6_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_0A11AABAA80EBB35DB0792AAF7DA53B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Operating Assets [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingAssetsAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_0A11AABAA80EBB35DB0792AAF7DA53B6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_0A11AABAA80EBB35DB0792AAF7DA53B6" xlink:to="lab_us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_0A11AABAA80EBB35DB0792AAF7DA53B6" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_0B1CD743C4978D939E3B92AAF7DAD372_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_0B1CD743C4978D939E3B92AAF7DAD372" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Accounts receivable</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_0B1CD743C4978D939E3B92AAF7DAD372_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_0B1CD743C4978D939E3B92AAF7DAD372" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Accounts Receivable</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_0B1CD743C4978D939E3B92AAF7DAD372" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_0B1CD743C4978D939E3B92AAF7DAD372" xlink:to="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_0B1CD743C4978D939E3B92AAF7DAD372" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_55EC538D427BD2F1CA5492AAF7DA7DAF_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_55EC538D427BD2F1CA5492AAF7DA7DAF" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Prepaid expenses and other current assets</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_55EC538D427BD2F1CA5492AAF7DA7DAF_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_55EC538D427BD2F1CA5492AAF7DA7DAF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Prepaid Expense and Other Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_55EC538D427BD2F1CA5492AAF7DA7DAF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_55EC538D427BD2F1CA5492AAF7DA7DAF" xlink:to="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_55EC538D427BD2F1CA5492AAF7DA7DAF" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_D89A87F2D77D8EDD27D592AF18568E99_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_D89A87F2D77D8EDD27D592AF18568E99" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Federal and state income tax receivable</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_D89A87F2D77D8EDD27D592AF18568E99_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_D89A87F2D77D8EDD27D592AF18568E99" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Income Taxes Receivable</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInIncomeTaxesReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_D89A87F2D77D8EDD27D592AF18568E99" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_D89A87F2D77D8EDD27D592AF18568E99" xlink:to="lab_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_D89A87F2D77D8EDD27D592AF18568E99" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract_D30D6DF350B6A5B1F35492AAF7DA57B8_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract_D30D6DF350B6A5B1F35492AAF7DA57B8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in liabilities -</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract_D30D6DF350B6A5B1F35492AAF7DA57B8_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract_D30D6DF350B6A5B1F35492AAF7DA57B8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Operating Liabilities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract_D30D6DF350B6A5B1F35492AAF7DA57B8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract_D30D6DF350B6A5B1F35492AAF7DA57B8" xlink:to="lab_us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract_D30D6DF350B6A5B1F35492AAF7DA57B8" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayable_F99F4A126FA5A196A1DD92AAF7DAC213_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayable_F99F4A126FA5A196A1DD92AAF7DAC213" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayable_F99F4A126FA5A196A1DD92AAF7DAC213_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayable_F99F4A126FA5A196A1DD92AAF7DAC213" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Accounts Payable</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_F99F4A126FA5A196A1DD92AAF7DAC213" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccountsPayable_F99F4A126FA5A196A1DD92AAF7DAC213" xlink:to="lab_us-gaap_IncreaseDecreaseInAccountsPayable_F99F4A126FA5A196A1DD92AAF7DAC213" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities_D76002FF92D98B2F660692AAF7DA53BC_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities_D76002FF92D98B2F660692AAF7DA53BC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued liabilities</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities_D76002FF92D98B2F660692AAF7DA53BC_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities_D76002FF92D98B2F660692AAF7DA53BC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Accrued Liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_D76002FF92D98B2F660692AAF7DA53BC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_D76002FF92D98B2F660692AAF7DA53BC" xlink:to="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities_D76002FF92D98B2F660692AAF7DA53BC" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_41C93E1FD9633DEF4D1092AAF7DA0EE4_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_41C93E1FD9633DEF4D1092AAF7DA0EE4" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash provided by operating activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_41C93E1FD9633DEF4D1092AAF7DA0EE4_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_41C93E1FD9633DEF4D1092AAF7DA0EE4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_41C93E1FD9633DEF4D1092AAF7DA0EE4" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9819E87502CFADEB0B8E92AAF7DADB95_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9819E87502CFADEB0B8E92AAF7DADB95" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash Flows from Investing Activities:</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9819E87502CFADEB0B8E92AAF7DADB95_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9819E87502CFADEB0B8E92AAF7DADB95" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_9819E87502CFADEB0B8E92AAF7DADB95" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_863228B7D1D88B35210392AAF7DA86C7_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_863228B7D1D88B35210392AAF7DA86C7" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Additions to property, plant, and equipment</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_863228B7D1D88B35210392AAF7DA86C7" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_2E424E47B8D1EE30C59A92AAF7DAB84D" xlink:type="locator" />
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