Exhibit 99.1

CHASE ISSUANCE TRUST

Form of Monthly Information Officer’s Certificate

Monthly Period: August 2007

The undersigned, a duly authorized representative of Chase Bank USA, National Association (the “Bank”), as Servicer pursuant to the Second Amended and Restated Transfer and Servicing Agreement, dated as of March 14, 2006 (as amended, supplemented or otherwise modified, the “Transfer and Servicing Agreement”), among the Bank, as Transferor, Servicer and Administrator, Chase Issuance Trust, as Issuing Entity, and Wells Fargo Bank, National Association, as Indenture Trustee and Collateral Agent, does hereby certify as follows:

Item 1121(a)(1):

(a) Record Date: August 31, 2007

(b) Interest Period: August 15, 2007 through September 16, 2007

(1) Interest Period for New Issuances:

A2007-12: August 1, 2007 through September 16, 2007

(c) Determination Date: September 13, 2007

(d) Distribution Date: September 17, 2007

CHASE BANK USA, NATIONAL ASSOCIATION, as Servicer
By:	/s/ Patricia Garvey
	Name: Patricia Garvey
	Title: Vice President