This excerpt taken from the PCG 10-Q filed May 4, 2005.
SECTION 3.12. CUSIP Numbers.
The Company, in issuing the Bonds, may use “CUSIP” or other similar numbers (if then generally in use), and, if so, the Trustee or Bond Registrar may use CUSIP or such other numbers in notices of redemption as a convenience to Holders; provided that any such notice may state that no representation is made as to the correctness of such numbers either as printed on the Bonds or as contained in any notice of a redemption and that reliance may be placed only on the other identification numbers printed on the Bonds, in which case none of the Company or, as the case may be, the Trustee or the Bond Registrar, or any agent of any of them, shall have any liability in respect of any CUSIP number used on any such notice, and any such redemption shall not be affected by any defect in or omission of such numbers. The Company will promptly notify the Trustee of any change in the CUSIP numbers.