STATEMENT CONCERNING PRIOR INDEPENDENT AUDITOR

    On May 4, 2002, Pioneer Bond Fund dismissed Arthur Andersen LLP as its
independent auditor and appointed Ernst & Young LLP to replace Arthur Andersen
LLP. As a result of the cessation of operations by Arthur Andersen LLP, Pioneer
Bond Fund has been unable to obtain Arthur Andersen LLP's written consent to the
references to Arthur Andersen LLP included in or made a part of this
Registration Statement and to incorporation by reference into the statement of
additional information of its audit report dated August 10, 2001, with respect
to Pioneer Bond Fund's financial statements as of June 30, 2001 and for the
years then ended. Under these circumstances, Rule 437a under the Securities Act
permits Pioneer Bond Fund to file this registration statement without a written
consent from Arthur Andersen LLP. However, Arthur Andersen LLP's lack of consent
could effect Arthur Andersen LLP's potential liability under Section 11(a) of
the Securities Act for any untrue statements of a material fact contained in the
financial statements audited by Arthur Andersen LLP or any omissions of a
material fact required to be stated therein. Accordingly, your ability to assert
a claim against Arthur Andersen LLP under Section 11(a) of the Securities Act
for any purchases of securities under this Registration Statement may be
impaired.