Exhibit 99.CERT
CERTIFICATION
I, Karla M. Rabusch, certify that:
1. I have reviewed this report on Form N-CSRS of Wells Fargo Master Trust on
behalf of the following series: Wells Fargo Advantage Diversified Fixed Income
Portfolio, Wells Fargo Advantage Diversified Stock Portfolio, and Wells Fargo
Advantage Short-Term Investment Portfolio;
2. Based on my knowledge, this report does not contain any untrue statement of a
material fact or omit to state a material fact necessary to make the statements
made, in light of the circumstances under which such statements were made, not
misleading with respect to the period covered by this report;
3. Based on my knowledge, the financial statements, and other financial
information included in this report, fairly present in all material respects the
financial condition, results of operations, changes in net assets, and cash
flows (if the financial statements are required to include a statement of cash
flows) of the registrant as of, and for, the periods presented in this report;
4. The registrant's other certifying officers and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined in
Rule 30a-3(c) under the Investment Company Act of 1940) and internal control
over financial reporting (as defined in Rule 30a-3(d) under the Investment
Company Act of 1940) for the registrant and have:
a) designed such disclosure controls and procedures or caused such
disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
registrant, including its consolidated subsidiaries, is made known
to us by others within those entities, particularly during the
period in which this report is being prepared;
b) designed such internal control over financial reporting, or caused
such internal control over financial reporting to be designed under
our supervision, to provide reasonable assurance regarding the
reliability of financial reporting and the preparation of financial
statements for external purposes in accordance with generally
accepted accounting principles;
c) evaluated the effectiveness of the registrant's disclosure controls
and procedures and presented in this report our conclusions about
the effectiveness of the disclosure controls and procedures, as of a
date within 90 days prior to the filing of this report based on such
evaluation; and
d) disclosed in this report any change in the registrant's internal
controls over financial reporting that occurred during the
registrant's most recent fiscal half-year that has materially
affected, or is reasonably likely to materially affect, the
registrant's internal control over financial reporting; and
5. The registrant's other certifying officers and I have disclosed to the
registrant's auditors and the audit committee of the registrant's board of
directors (or persons performing the equivalent functions):
a) all significant deficiencies and material weaknesses in the design
or operation of internal controls over financial reporting which are
reasonably likely to adversely affect the registrant's ability to
record, process, summarize, and report financial information; and
b) any fraud, whether or not material, that involves management or
other employees who have a significant role in the registrant's
internal controls over financial reporting.
Date: October 29, 2010
/s/ Karla M. Rabusch
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Karla M. Rabusch
President
Wells Fargo Master Trust
Exhibit 99.CERT
CERTIFICATION
I, Kasey L. Phillips, certify that:
1. I have reviewed this report on Form N-CSRS of Wells Fargo Master Trust on
behalf of the following series: Wells Fargo Advantage Diversified Fixed Income
Portfolio, Wells Fargo Advantage Diversified Stock Portfolio, and Wells Fargo
Advantage Short-Term Investment Portfolio;
2. Based on my knowledge, this report does not contain any untrue statement of a
material fact or omit to state a material fact necessary to make the statements
made, in light of the circumstances under which such statements were made, not
misleading with respect to the period covered by this report;
3. Based on my knowledge, the financial statements, and other financial
information included in this report, fairly present in all material respects the
financial condition, results of operations, changes in net assets, and cash
flows (if the financial statements are required to include a statement of cash
flows) of the registrant as of, and for, the periods presented in this report;
4. The registrant's other certifying officers and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined in
Rule 30a-3(c) under the Investment Company Act of 1940) and internal control
over financial reporting (as defined in Rule 30a-3(d) under the Investment
Company Act of 1940) for the registrant and have:
a) designed such disclosure controls and procedures, or caused such
disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
registrant, including its consolidated subsidiaries, is made known
to us by others within those entities, particularly during the
period in which this report is being prepared;
b) designed such internal control over financial reporting, or caused
such internal control over financial reporting to be designed under
our supervision, to provide reasonable assurance regarding the
reliability of financial reporting and the preparation of financial
statements for external purposes in accordance with generally
accepted accounting principles;
c) evaluated the effectiveness of the registrant's disclosure controls
and procedures and presented in this report our conclusions about
the effectiveness of the disclosure controls and procedures, as of a
date within 90 days prior to the filing of this report based on such
evaluation; and
d) disclosed in this report any change in the registrant's internal
controls over financial reporting that occurred during the
registrant's most recent fiscal half-year that has materially
affected, or is reasonably likely to materially affect, the
registrant's internal control over financial reporting; and
5. The registrant's other certifying officers and I have disclosed, based on our
most recent evaluation, to the registrant's auditors and the audit committee of
the registrant's board of directors (or persons performing the equivalent
functions):
a) all significant deficiencies and material weaknesses in the design or
operation of internal controls over financial reporting which are
reasonably likely to adversely affect the registrant's ability to record,
process, summarize, and report financial information; and
b) any fraud, whether or not material, that involves management or other
employees who have a significant role in the registrant's internal
controls over financial reporting.
Date: October 29, 2010
/s/ Kasey L. Phillips
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Kasey L. Phillips
Treasurer
Wells Fargo Master Trust