<PAGE> 1
EXHIBIT m(6)(b)
AMENDMENT NO. 1
TO
MASTER DISTRIBUTION PLAN
OF
AIM INVESTMENT SECURITIES FUNDS
(CLASS B SHARES)
(DISTRIBUTION FEE)
The Master Distribution Plan (the "Plan") dated September 28, 1998,
pursuant to Rule 12b-1 of AIM Investment Securities Funds, a Delaware business
trust, is hereby amended as follows:
Schedule A of the Plan is hereby deleted in its entirety and
replaced with the following:
"SCHEDULE A
TO
MASTER DISTRIBUTION PLAN
OF
AIM INVESTMENT SECURITIES FUNDS
(CLASS B SHARES)
(DISTRIBUTION FEE)
<TABLE>
<CAPTION>
MAXIMUM ASSET- MAXIMUM MAXIMUM
BASED SALES SERVICE AGGREGATE
FUND CHARGE FEE ANNUAL FEE
---- -------------- ------- ----------
<S> <C> <C> <C>
AIM High Yield Fund 0.75% 0.25% 1.00%
(Class B Shares)
AIM High Yield Fund II 0.75% 0.25% 1.00%
(Class B Shares)
AIM Income Fund
(Class B Shares)
AIM Intermediate Government Fund 0.75% 0.25% 1.00%
(Class B Shares)
AIM Money Market Fund 0.75% 0.25% 1.00%
(Class B Shares)
AIM Municipal Bond Fund 0.75% 0.25% 1.00%"
(Class B Shares)
</TABLE>
1
<PAGE> 2
All other terms and provisions of the Plan not amended herein shall
remain in full force and effect.
Dated: June 1, 2000
---------------------
AIM INVESTMENT SECURITIES FUNDS
(on behalf of its Class B Shares)
Attest: /s/ KATHLEEN J. PFLUEGER By: /s/ CAROL F. RELIHAN
--------------------------------- ----------------------------
Assistant Secretary Senior Vice President
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