The best idea is to copy a current training company's certificate but you MUST then send it to the accredititng body for approval as they are very fussy about wording. I remember having 10,000 in stock and having to scrap them all when they suddenly stopped allowing us to use the word 'competent' some years ago. Take your own certificate, change it to your company name and details etc. Then copy it and send it to RTITB or ITSSAR with an acompanying letter.