This document is a training certificate issued by the Health and Safety Executive certifying that IJTESSET, TJEERD TERPSTRA of EIIMASTRMT ]-OO, DEN Htr,DER, THE NETTIERT,AT{DS has attained a satisfactory standard of competence in diving operations specified in Schedule 4 of the Diving Operations at Work Regulations 1981. The certificate is numbered Part I /279/9L and was issued on 9 MARCH 1991 by the National Diving Centre in the Netherlands.