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007 C010200 2
007 C020200 PIONEER NEW YORK TRIPLE TAX-FREE FUND
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007 C010300 3
007 C020300 PIONEER MASSACHUSETTS DOUBLE TAX-FREE FUND
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<PAGE> PAGE 2
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<PAGE> PAGE 4
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<PAGE> PAGE 5
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<PAGE> PAGE 6
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<PAGE> PAGE 7
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<PAGE> PAGE 8
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</TABLE>
To the Board of Directors of
Pioneer Massachusetts Double Tax-Free Fund:
In planning and performing our audit of the financial statements of Pioneer
Massachusetts Double Tax-Free Fund for the period ended March 31, 1996, we
considered its internal control structure, including procedures for safeguarding
securities, in order to determine our auditing procedures for the purpose of
expressing our opinion on the financial statements and to comply with the
requirements of Form N-SAR, not to provide assurance on the internal control
structure.
The management of Pioneer Massachusetts Double Tax-Free Fund is responsible for
establishing and maintaining an internal control structure. In fulfilling this
responsibility, estimates and judgments by management are required to assess the
expected benefits and related costs of internal control structure policies and
procedures. Two of the objectives of an internal control structure are to
provide management with reasonable, but not absolute, assurance that assets are
safeguarded against loss from unauthorized use or disposition and transactions
are executed in accordance with management's authorization and recorded properly
to permit preparation of financial statements in conformity with generally
accepted accounting principles.
Because of inherent limitations in any internal control structure, errors or
irregularities may occur and may not be detected. Also, projection of any
evaluation of the structure to future periods is subject to the risk that it may
become inadequate because of changes in conditions or that the effectiveness of
the design and operation may deteriorate.
Our consideration of the internal control structure would not necessarily
disclose all matters in the internal control structure that might be material
weaknesses under standards established by the American Institute of Certified
Public Accountants. A material weakness is a condition in which the design or
operation of the specific internal control structure elements does not reduce to
a relatively low level the risk that errors or irregularities in amounts that
would be material in relation to the financial statements being audited may
occur and not be detected within a timely period by employees in the normal
course of performing their assigned functions. However, we noted no matters
involving the internal control structure, including procedures for safeguarding
securities, that we consider to be material weaknesses as defined above as of
March 31, 1996.
This report is intended solely for the information and use of management and the
Securities and Exchange Commission.
Boston, Massachusetts
April 26, 1996
<PAGE>
To the Board of Directors of
Pioneer New York Triple Tax-Free Fund:
In planning and performing our audit of the financial statements of Pioneer New
York Triple Tax-Free Fund for the period ended March 31, 1996, we considered its
internal control structure, including procedures for safeguarding securities, in
order to determine our auditing procedures for the purpose of expressing our
opinion on the financial statements and to comply with the requirements of Form
N-SAR, not to provide assurance on the internal control structure.
The management of Pioneer New York Triple Tax-Free Fund is responsible for
establishing and maintaining an internal control structure. In fulfilling this
responsibility, estimates and judgments by management are required to assess the
expected benefits and related costs of internal control structure policies and
procedures. Two of the objectives of an internal control structure are to
provide management with reasonable, but not absolute, assurance that assets are
safeguarded against loss from unauthorized use or disposition and transactions
are executed in accordance with management's authorization and recorded properly
to permit preparation of financial statements in conformity with generally
accepted accounting principles.
Because of inherent limitations in any internal control structure, errors or
irregularities may occur and may not be detected. Also, projection of any
evaluation of the structure to future periods is subject to the risk that it may
become inadequate because of changes in conditions or that the effectiveness of
the design and operation may deteriorate.
Our consideration of the internal control structure would not necessarily
disclose all matters in the internal control structure that might be material
weaknesses under standards established by the American Institute of Certified
Public Accountants. A material weakness is a condition in which the design or
operation of the specific internal control structure elements does not reduce to
a relatively low level the risk that errors or irregularities in amounts that
would be material in relation to the financial statements being audited may
occur and not be detected within a timely period by employees in the normal
course of performing their assigned functions. However, we noted no matters
involving the internal control structure, including procedures for safeguarding
securities, that we consider to be material weaknesses as defined above as of
March 31, 1996.
This report is intended solely for the information and use of management and the
Securities and Exchange Commission.
Boston, Massachusetts
April 26, 1996
<PAGE>
To the Board of Directors of
Pioneer California Double Tax-Free Fund:
In planning and performing our audit of the financial statements of Pioneer
California Double Tax-Free Fund for the period ended March 31, 1996, we
considered its internal control structure, including procedures for safeguarding
securities, in order to determine our auditing procedures for the purpose of
expressing our opinion on the financial statements and to comply with the
requirements of Form N-SAR, not to provide assurance on the internal control
structure.
The management of Pioneer California Double Tax-Free Fund is responsible for
establishing and maintaining an internal control structure. In fulfilling this
responsibility, estimates and judgments by management are required to assess the
expected benefits and related costs of internal control structure policies and
procedures. Two of the objectives of an internal control structure are to
provide management with reasonable, but not absolute, assurance that assets are
safeguarded against loss from unauthorized use or disposition and transactions
are executed in accordance with management's authorization and recorded properly
to permit preparation of financial statements in conformity with generally
accepted accounting principles.
Because of inherent limitations in any internal control structure, errors or
irregularities may occur and may not be detected. Also, projection of any
evaluation of the structure to future periods is subject to the risk that it may
become inadequate because of changes in conditions or that the effectiveness of
the design and operation may deteriorate.
Our consideration of the internal control structure would not necessarily
disclose all matters in the internal control structure that might be material
weaknesses under standards established by the American Institute of Certified
Public Accountants. A material weakness is a condition in which the design or
operation of the specific internal control structure elements does not reduce to
a relatively low level the risk that errors or irregularities in amounts that
would be material in relation to the financial statements being audited may
occur and not be detected within a timely period by employees in the normal
course of performing their assigned functions. However, we noted no matters
involving the internal control structure, including procedures for safeguarding
securities, that we consider to be material weaknesses as defined above as of
March 31, 1996.
This report is intended solely for the information and use of management and the
Securities and Exchange Commission.
Boston, Massachusetts
April 26, 1996
<PAGE>
To the Board of Directors of
Pioneer Tax-Free State Series Trust (comprised of Pioneer Massachusetts
Double Tax-Free Fund, Pioneer New York Triple Tax-Free Fund, Pioneer
California Double Tax-Free Fund):
In planning and performing our audit of the financial statements of Pioneer
Tax-Free State Series Trust (comprised of Pioneer Massachusetts Double Tax-Free
Fund, Pioneer New York Triple Tax-Free Fund, Pioneer California Double Tax-Free
Fund) for the period ended March 31, 1996, we considered its internal control
structure, including procedures for safeguarding securities, in order to
determine our auditing procedures for the purpose of expressing our opinion on
the financial statements and to comply with the requirements of Form N-SAR, not
to provide assurance on the internal control structure.
The management of Pioneer Tax-Free State Series Trust (comprised of Pioneer
Massachusetts Double Tax-Free Fund, Pioneer New York Triple Tax-Free Fund,
Pioneer California Double Tax-Free Fund) is responsible for establishing and
maintaining an internal control structure. In fulfilling this responsibility,
estimates and judgments by management are required to assess the expected
benefits and related costs of internal control structure policies and
procedures. Two of the objectives of an internal control structure are to
provide management with reasonable, but not absolute, assurance that assets are
safeguarded against loss from unauthorized use or disposition and transactions
are executed in accordance with management's authorization and recorded properly
to permit preparation of financial statements in conformity with generally
accepted accounting principles.
Because of inherent limitations in any internal control structure, errors or
irregularities may occur and may not be detected. Also, projection of any
evaluation of the structure to future periods is subject to the risk that it may
become inadequate because of changes in conditions or that the effectiveness of
the design and operation may deteriorate.
Our consideration of the internal control structure would not necessarily
disclose all matters in the internal control structure that might be material
weaknesses under standards established by the American Institute of Certified
Public Accountants. A material weakness is a condition in which the design or
operation of the specific internal control structure elements does not reduce to
a relatively low level the risk that errors or irregularities in amounts that
would be material in relation to the financial statements being audited may
occur and not be detected within a timely period by employees in the normal
course of performing their assigned functions. However, we noted no matters
involving the internal control structure, including procedures for safeguarding
securities, that we consider to be material weaknesses as defined above as of
March 31, 1996.
This report is intended solely for the information and use of management and the
Securities and Exchange Commission.
Boston, Massachusetts
April 26, 1996
