- by Dr. William Goble, CFSE
- Thursday, May 12, 2011
- Certification
Buy Certified Equipment, Meet the Standard, Right? WRONG!
While correcting a CFSP exam, I read a question which went something like this:
If you purchase all IEC 61508 certified equipment for a low demand safety instrumented function, then to meet the requirements of IEC 61511:
A. No other design verification is needed
B.…
Read More...
- by Ted Stewart, CFSP, exidaCSP
- Friday, January 30, 2015
- Certification
CFSE/CFSP: Why and How to Become One

As an engineer responsible for critical industrial processes, we face a variety of challenges:
- coping with new and changing standards
- increased pressures for process uptime and plant safety
- a growing list of responsibilities
- decreased availability of support personnel
This makes…
Read More...
- by Dr. Steve Gandy, CFSP
- Tuesday, July 08, 2025
- CertificationFunctional Safety
What Does IEC 61511 Mean by Competency?
When the latest edition of IEC61511 was published in 2016, one of the key changes was the emphasis on competency and some further guidance on what this means. The relevant clauses in the IEC61511:2016 are 5.2.2.1 to 5.2.2.3 under Clause 5.2.2: Organization and Resources. I am often asked what…
Read More...