Exhibit 31


                      Rule 13a-14/15d - 14(a) CERTIFICATION


I, Christopher L. Coccio, certify that:

      1.    I have reviewed this quarterly report on Form 10-QSB of Sono-Tek
            Corporation;

      2.    Based on my knowledge, this quarterly 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 circumstance
            under which such statements were made, not misleading with respect
            to the period covered by this quarterly report;

      3.    Based on my knowledge, the financial statements, and other financial
            information included in this quarterly report, fairly present in all
            material respects the financial condition, results of operations and
            cash flows of the registrant as of, and for the periods presented in
            this quarterly report;

      4.    I am responsible for establishing and maintaining disclosure
            controls and procedures (as defined in Exchange Act Rules 13a-14 and
            15d-14) for the registrant and I have:

            a)    Designed such disclosure controls and procedures to ensure
                  that material information relating to the registrant,
                  including its consolidated subsidiaries, is made known to me
                  by others within those entities, particularly during the
                  period this quarterly report is being prepared;

            b)    Evaluated the effectiveness of the registrant's disclosure
                  controls and procedures as of a date within 90 days prior to
                  the filing date of this quarterly report (the "Evaluation
                  Date"); and

            c)    Presented in this quarterly report my conclusions about the
                  effectiveness of the disclosure controls and procedures based
                  on my evaluation as of the Evaluation Date:

      5.    I have disclosed, based on my 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 in the design or operation of
                  internal controls which could adversely effect the
                  registrant's ability to record, process, summarize and report
                  financial data and have identified for the registrant's
                  auditors any material weaknesses in internal controls; and

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            b)    Any fraud, whether or not material; that involves management
                  or other employees who have a significant role in the
                  registrant's internal controls; and

      6.    I have indicated in this quarterly report whether or not there were
            significant changes in internal controls or in other factors that
            could significantly affect internal controls subsequent to the date
            of my most recent evaluation, including any corrective actions with
            regard to significant deficiencies and material weaknesses.

Date: July 7, 2004

/s/ Christopher L. Coccio
- -------------------------
Christopher L. Coccio
Chief Executive Officer and President
(principal executive and accounting officer)


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