UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549


(Check One): [ ]Form 10-K  [ ]Form 20-F [ ]Form 11-K [x]Form 10-Q [ ]Form N-SAR

     For Period Ended: March 31, 2002
     [ ] Transition Report on Form 10-K
     [ ] Transition Report on Form 20-F
     [ ] Transition Report on Form 11-K
     [ ] Transition Report on Form 10-Q
     [ ] Transition Report on Form N-SAR

     For the transition Period Ended : _____________________________

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  Read Instruction (on back page) before Preparing Form. Please Print or Type.
      Nothing in this form shall be construed to imply that the Commission
                 has verified any information contained herein.
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If the notification  relates to a portion of the filing checked above,  identify
the item(s) to which the notification relates:


PART I - REGISTRANT INFORMATION

 INTERNATIONAL ISOTOPES INC.
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 Full Name of Registrant:


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 Former Name if Applicable

 4137 Commerce Circle
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 Address of Principal Executive Office (Street and Number)

 Idaho Falls, Idaho, 83401
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 City, State and Zip Code


PART II - Rules 12b-25(b) AND (c)

If the subject  report could not be filed without  reasonable  effort or expense
and the registrant seeks relief pursuant to Rule 12b-25(b), the following should
be completed. (Check box if appropriate)

         (a)    The reasons  described in reasonable  detail in Part III of this
                form  could not be  eliminated  without  unreasonable  effort or
                expense;
         (b)    The subject annual report, semi-annual report, transition report
                of Form 10-K, Form 20-F,  11-K, Form N-SAR, or portion  thereof,
                will be filed on or before the fifteenth  calendar day following
                the  prescribed  due date;  or the subject  quarterly  report of
                transition report on Form 10-Q, or portion thereof will be filed
                on or before the fifth calendar day following the prescribed due
                date; and
         (c)    The   accountant's   statement  or  other  exhibit  required  by
                Rule12b-25(c) has been attached if applicable.




PART III - NARRATIVE

State  below in  reasonable  detail the reason  why the Form 10-K,  11-K,  10-Q,
N-SAR, or the transition  report or portion  thereof,  could not be filed within
the prescribed time period. (Attach Extra Sheets if Needed)

The Company has completed a transfer of the Corporate headquarters including all
data base records,  replaced accounting software programs,  established entirely
new accounting  staff,  and hired a new auditing firm all in the last quarter of
2001.  These extensive  changes have slowed  completion of annual  reporting and
delayed the start of the  Company's  annual  audit.  Until the 10-K for 2001 was
complete,  we could not finalize our first quarter 2002 financials.  The 10-K is
now complete and we expect to file it this week.  The 10-Q will be filed as soon
as possible thereafter.


PART IV - OTHER INFORMATION

(1)  Name  and  telephone  number  or  person  to  contact  in  regard  to  this
     notification

            Steve Laflin                   208                   524-5300
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               (Name)                  (Area Code)          (Telephone Number)

(2)  Have all other periodic  reports  required under Section 13 or 15(d) of the
     Securities Exchange Act of 1934 or Section 30 or the Investment Company Act
     of 1940 during the preceding 12 months or for such shorter  period that the
     registrant was required to file such  report(s)  been filled?  If answer is
     no, identify report(s). [] Yes [X] No

     That the forms 10Q's for March 31, 2001,  June,  30,  2001,  September 30 ,
     2001, and the 10-K for Dec. 31, 2001 have not been filed.

(3)  Is it anticipated that any significant change in results of operations from
     the corresponding  period for the last fiscal year will be reflected by the
     earnings statement to be included in the subject report or portion thereof?
     [ ] Yes [X] No

If so, attach an explanation of the  anticipated  change,  both  narratively and
quantitatively, and, if appropriate, state the reasons why a reasonable estimate
of the results cannot be made.

                          INTERNATIONAL ISOTOPES, INC.
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                  (Name of registrant as Specified in Charter)

has  caused  this  notification  to be signed on its  behalf by the  undersigned
hereunto duly authorized


Date:  May 15, 2002
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By:    /S/ Steve Laflin
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       Steve Laflin,  President & CEO

INSTRUCTIONS:  The form may be signed by an executive  officer of the registrant
or by any other duly authorized representative. The name and title of the person
signing  the form  shall  be typed or  printed  beneath  the  signature.  If the
statement is signed on behalf of the registrant by an authorized  representative
(other than an executive officer), evidence of the representative's authority to
sign on behalf of the registrant shall be filed with the form.

                                    ATTENTION
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 Intentional  misstatements  or omissions  of fact constitute  Federal  Criminal
 Violations (See 18 U.S.C. 1001).
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