EXHIBIT 31.1
                   CERTIFICATION OF CHIEF EXECUTIVE OFFICER
                     AND INTERIM CHIEF FINANCIAL OFFICER
           PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

     I, Mark A. Smith certify that:

     1.  I have reviewed this quarterly report of Bion Environmental
Technologies, Inc.

     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 and cash flows of the small
business issuer as of, and for, the periods presented in this report;

     4. I am responsible for establishing and maintaining disclosure controls
and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for
the small business issuer 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 small business issuer,
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)  Evaluated the effectiveness of the small business issuer's
disclosure controls and procedures and presented in this report our
conclusions about the effectiveness of the disclosure controls and procedures,
as of the end of the period covered by this report based on such evaluation;
and

         (c)  Disclosed in this report any change in the small business
issuer's internal control over financial reporting that occurred during the
small business issuer's most recent fiscal quarter (the small business
issuer's fourth fiscal quarter in the case of an annual report) that has
materially affected, or is reasonably likely to materially affect, the small
business issuer's internal control over financial reporting; and

     5. I have disclosed, based on our most recent evaluation of internal
control over financial reporting, to the small business issuer's auditors
(none exist at this date as described in the Annual Report) and the audit
committee of the small business issuer's board of directors (or persons
performing the equivalent functions):

         (a)  All significant deficiencies and material weaknesses in the
design or operation of internal control over financial reporting which are
reasonably likely to adversely affect the small business issuer'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 small business issuer's
internal control over financial reporting.

Date: November 18, 2003


/s/ Mark A. Smith
--------------------------------
Mark A. Smith
Chief Executive Officer and
Interim Chief Financial Officer