EXHIBIT 99.1





                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002



In connection with the Quarterly Report of CryoLife Inc. (the "Company") on Form
10-Q for the quarter  ending March 31, 2003,  as filed with the  Securities  and
Exchange  Commission  on the date  hereof  (the  "Report"),  each of  Steven  G.
Anderson, the Chairman,  President,  and Chief Executive Officer of the Company,
and David Ashley Lee, the Vice President, Treasurer, and Chief Financial Officer
of the  Company,  hereby  certifies,  pursuant to and for  purposes of 18 U.S.C.
Section 1350, as adopted  pursuant to Section 906 of the  Sarbanes-Oxley  Act of
2002, that, to his knowledge:

     (1) The Report fully  complies  with the  requirements  of Section 13(a) or
     15(d) of the Securities Exchange Act of 1934; and

     (2)  The  information  contained  in the  Report  fairly  presents,  in all
     material respects, the financial condition and results of operations of the
     Company.


/s/ STEVEN G. ANDERSON                     /s/ DAVID ASHLEY LEE
----------------------------------         ----------------------------------
STEVEN G. ANDERSON                         DAVID ASHLEY LEE
Chairman, President, and                   Vice President, Treasurer, and
Chief Executive Officer                    Chief Financial Officer
May 5, 2003                                May 5, 2003