This excerpt taken from the PACW 10-K filed Feb 27, 2007.
Section 3.9. Covenants as to the Trust. For so long as the Trust Securities remain outstanding, the Company shall maintain 100% ownership of the Common Securities; provided, however, that any permitted successor of the Company under this Indenture may succeed to the Companys ownership of such Common Securities. The Company, as owner of the Common Securities, shall, except in connection with a distribution of Debentures to the holders of Trust Securities in liquidation of the Trust, the redemption of all of the Trust Securities or certain mergers, consolidations or amalgamations, each as permitted by the Declaration, cause the Trust (a) to remain a statutory trust, (b) to otherwise continue to be classified as a grantor trust for United States federal income tax purposes, and (c) to cause each holder of Trust Securities to be treated as owning an undivided beneficial interest in the Debentures.