The fund invests its assets in a combination of tax-exempt obligations and taxable debt obligations. Under normal circumstances, it invests at least 80% of its net assets in tax-exempt obligations. The fund's average portfolio maturity, at the time of investment, will be two years or less. The obligations in which the fund invests must, at the time of investment, be rated investment grade, as determined by the various rating agencies, or if unrated, of comparable quality as determined by the Adviser.