DO YOU NEED TO HAVE 2391 TO BE ABLE TO INSPECT AND SIGN CERTIFICATES BEEN TESTING FOR 10 YEARS NOW BUT NOT DONE 2391 TESING COURSE. IF YOU ARE WORKING FOR A COMPANY THAT IS NICEIC REGISTERED ARE YOU COVERED AS A COMPETENT PERSON TO SIGN CERTIFICATES AS THIS IS THEN COUNTER SIGNED BY A QUALIFIED SUPERVISOR WITHIN THE COMPANY. WOULD LIKE SOME ADVICE. MANY THANKS