EXHIBIT 31.1


                            CERTIFICATION PURSUANT TO
                  SECTION 302 OF THE SARBANES OXLEY-ACT OF 2002

I, Steve T.  Laflin,  President,  Chief  Executive  Officer and Chief  Financial
Officer of International Isotopes Inc. certify that:

     1.    I have reviewed this report on Form 10-KSB of International  Isotopes
           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.    The small  business  issuer's  other  certifying  officers  and I are
           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


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     5.    The small  business  issuer's  other  certifying  officers and I have
           disclosed,  based on our most recent  evaluation of internal  control
           over financial reporting, to the small business issuer's auditors 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.

March 24, 2004                               /s/ Steve T. Laflin
                                  --------------------------------------------
                                                Steve T. Laflin
                                  President, Chief Executive Officer and Chief
                                               Financial Officer



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