OPPENHEIMER MAIN STREET CALIFORNIA MUNICIPAL FUND
Supplement dated February 23, 1999 to the
Prospectus dated December 22, 1999
The Prospectus is changed as follows:
1. The last sentence of the third paragraph in the section entitled "Floating
Rate/Variable Rate Obligations" on page 10 is modified to read as follows:
The Fund will not invest more than 20% of its total assets in inverse
floaters.
2. The third sentence of the paragraph entitled "Illiquid and Restricted
Securities" on page 11 is modified to read as follows:
The Fund will not invest more than 15% of its net assets in illiquid
securities.
February 23, 1999 PS0725.011
