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<EFFECTIVENESS-DATE>20000628
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<CONFORMED-NAME>COLUMBIA BANKING SYSTEM INC
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<ASSIGNED-SIC>6035
<IRS-NUMBER>911422237
<STATE-OF-INCORPORATION>WA
<FISCAL-YEAR-END>1231
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<STREET1>1102 BROADWAY PLAZA
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<DESCRIPTION>FORM S-8
<TEXT>

FORM S-8
</TEXT>
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<DESCRIPTION>OPINION OF DAVIS WRIGHT TREMAINE, LLP
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OPINION OF DAVIS WRIGHT TREMAINE, LLP
</TEXT>
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<DESCRIPTION>INDEPENDENT AUDITORS' CONSENT
<TEXT>

INDEPENDENT AUDITORS'CONSENT
</TEXT>
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<FILENAME>0004.txt
<DESCRIPTION>POWER OF ATTORNEY
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POWER OF ATTORNEY
</TEXT>
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