Fund Description: Nuveen California Select Tax-Free Income Portfolio is a closed-end management investment company. The Fund investment objective is to provide stable dividends exempt from both regular Federal income tax and California personally income tax, consistent with preservation of capital. The Fund will invest all of its assets in a diversified portfolio of long-term California Municipal Obligations which are either covered by insurance guaranteeing the timely payment of principal and interest thereon or backed by an escrow or trust account containing sufficient U.S. Government or U.S. Government agency securities to ensure timely payment of interest and principal. Municipal obligations backed by an escrow or trust account will not constitute more than 20% of the Fund's assets. The Fund may invest up to 20% of its net assets in municipal obligations that pay interest subject to the Federal alternative minimum tax. The Fund's investment advisor is Nuveen Advisory Corp.