Exhibit 31(b)

|CERTIFICATION                                                                                                  
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|I, JOHN R. BIGGAR, the principal financial
        officer of PPL Corporation (the "registrant"), certify that:
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|1.                                                                                                             
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|2.                                                                                                             
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|3.                                                                                                             
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|4.                                                                                                             
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|5.                                                                                                             
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|Date:  May 4, 2005                                                                                             
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